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Finding the Fourth Proportional to 88,631.28, 122,356.31 and 68,442.84

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Solution

The fourth proportional to 88,631.28, 122,356.31 and 68,442.84 is: 94,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,631.28 : 122,356.31 = 68,442.84 : x
  2. Step 2: Convert to fraction form
    88,631.28/122,356.31 = 68,442.84/x
  3. Step 3: Cross multiply
    88,631.28x = 122,356.31 × 68,442.84
  4. Step 4: Simplify right side
    88,631.28x = 8,374,413,348.32
  5. Step 5: Solve for x
    x = 8,374,413,348.32/88,631.28
  6. Step 6: Final answer
    x = 94,485.98

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