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Finding the Fourth Proportional to 268,618.40, 402,977.42 and 88,716.28

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Solution

The fourth proportional to 268,618.40, 402,977.42 and 88,716.28 is: 133,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,618.40 : 402,977.42 = 88,716.28 : x
  2. Step 2: Convert to fraction form
    268,618.40/402,977.42 = 88,716.28/x
  3. Step 3: Cross multiply
    268,618.40x = 402,977.42 × 88,716.28
  4. Step 4: Simplify right side
    268,618.40x = 35,750,657,626.40
  5. Step 5: Solve for x
    x = 35,750,657,626.40/268,618.40
  6. Step 6: Final answer
    x = 133,090.87

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