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Finding the Fourth Proportional to 90,778.80, 125,298.72 and 63,929.28

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Solution

The fourth proportional to 90,778.80, 125,298.72 and 63,929.28 is: 88,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,778.80 : 125,298.72 = 63,929.28 : x
  2. Step 2: Convert to fraction form
    90,778.80/125,298.72 = 63,929.28/x
  3. Step 3: Cross multiply
    90,778.80x = 125,298.72 × 63,929.28
  4. Step 4: Simplify right side
    90,778.80x = 8,010,256,954.52
  5. Step 5: Solve for x
    x = 8,010,256,954.52/90,778.80
  6. Step 6: Final answer
    x = 88,239.29

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