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Finding the Fourth Proportional to 88,691.90, 133,037.85 and 63,905.90

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Solution

The fourth proportional to 88,691.90, 133,037.85 and 63,905.90 is: 95,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.90 : 133,037.85 = 63,905.90 : x
  2. Step 2: Convert to fraction form
    88,691.90/133,037.85 = 63,905.90/x
  3. Step 3: Cross multiply
    88,691.90x = 133,037.85 × 63,905.90
  4. Step 4: Simplify right side
    88,691.90x = 8,501,903,538.32
  5. Step 5: Solve for x
    x = 8,501,903,538.32/88,691.90
  6. Step 6: Final answer
    x = 95,858.85

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