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Finding the Fourth Proportional to 77,138.19, 115,691.09 and 29,736.99

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Solution

The fourth proportional to 77,138.19, 115,691.09 and 29,736.99 is: 44,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,138.19 : 115,691.09 = 29,736.99 : x
  2. Step 2: Convert to fraction form
    77,138.19/115,691.09 = 29,736.99/x
  3. Step 3: Cross multiply
    77,138.19x = 115,691.09 × 29,736.99
  4. Step 4: Simplify right side
    77,138.19x = 3,440,304,637.73
  5. Step 5: Solve for x
    x = 3,440,304,637.73/77,138.19
  6. Step 6: Final answer
    x = 44,599.24

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