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Finding the Fourth Proportional to 15,720.66, 23,589.09 and 6,961.73

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Solution

The fourth proportional to 15,720.66, 23,589.09 and 6,961.73 is: 10,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.66 : 23,589.09 = 6,961.73 : x
  2. Step 2: Convert to fraction form
    15,720.66/23,589.09 = 6,961.73/x
  3. Step 3: Cross multiply
    15,720.66x = 23,589.09 × 6,961.73
  4. Step 4: Simplify right side
    15,720.66x = 164,220,757.58
  5. Step 5: Solve for x
    x = 164,220,757.58/15,720.66
  6. Step 6: Final answer
    x = 10,446.17

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