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Finding the Fourth Proportional to 104,745.20, 144,549.72 and 56,999.84

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Solution

The fourth proportional to 104,745.20, 144,549.72 and 56,999.84 is: 78,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,745.20 : 144,549.72 = 56,999.84 : x
  2. Step 2: Convert to fraction form
    104,745.20/144,549.72 = 56,999.84/x
  3. Step 3: Cross multiply
    104,745.20x = 144,549.72 × 56,999.84
  4. Step 4: Simplify right side
    104,745.20x = 8,239,310,912.04
  5. Step 5: Solve for x
    x = 8,239,310,912.04/104,745.20
  6. Step 6: Final answer
    x = 78,660.51

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