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Finding the Fourth Proportional to 23,620.76, 35,431.16 and 11,917.88

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Solution

The fourth proportional to 23,620.76, 35,431.16 and 11,917.88 is: 17,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,620.76 : 35,431.16 = 11,917.88 : x
  2. Step 2: Convert to fraction form
    23,620.76/35,431.16 = 11,917.88/x
  3. Step 3: Cross multiply
    23,620.76x = 35,431.16 × 11,917.88
  4. Step 4: Simplify right side
    23,620.76x = 422,264,313.14
  5. Step 5: Solve for x
    x = 422,264,313.14/23,620.76
  6. Step 6: Final answer
    x = 17,876.83

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