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Finding the Fourth Proportional to 84,253.84, 126,380.76 and 57,878.62

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Solution

The fourth proportional to 84,253.84, 126,380.76 and 57,878.62 is: 86,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,253.84 : 126,380.76 = 57,878.62 : x
  2. Step 2: Convert to fraction form
    84,253.84/126,380.76 = 57,878.62/x
  3. Step 3: Cross multiply
    84,253.84x = 126,380.76 × 57,878.62
  4. Step 4: Simplify right side
    84,253.84x = 7,314,743,983.35
  5. Step 5: Solve for x
    x = 7,314,743,983.35/84,253.84
  6. Step 6: Final answer
    x = 86,817.93

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