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Finding the Fourth Proportional to 104,561.90, 144,295.88 and 56,815.44

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Solution

The fourth proportional to 104,561.90, 144,295.88 and 56,815.44 is: 78,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,561.90 : 144,295.88 = 56,815.44 : x
  2. Step 2: Convert to fraction form
    104,561.90/144,295.88 = 56,815.44/x
  3. Step 3: Cross multiply
    104,561.90x = 144,295.88 × 56,815.44
  4. Step 4: Simplify right side
    104,561.90x = 8,198,233,628.31
  5. Step 5: Solve for x
    x = 8,198,233,628.31/104,561.90
  6. Step 6: Final answer
    x = 78,405.55

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