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Finding the Fourth Proportional to 104,857.20, 156,978.60 and 92,569.20

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Solution

The fourth proportional to 104,857.20, 156,978.60 and 92,569.20 is: 138,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,857.20 : 156,978.60 = 92,569.20 : x
  2. Step 2: Convert to fraction form
    104,857.20/156,978.60 = 92,569.20/x
  3. Step 3: Cross multiply
    104,857.20x = 156,978.60 × 92,569.20
  4. Step 4: Simplify right side
    104,857.20x = 14,531,383,419.12
  5. Step 5: Solve for x
    x = 14,531,383,419.12/104,857.20
  6. Step 6: Final answer
    x = 138,582.60

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