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Finding the Fourth Proportional to 18,992.59, 26,210.42 and 11,922.91

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Solution

The fourth proportional to 18,992.59, 26,210.42 and 11,922.91 is: 16,454.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.59 : 26,210.42 = 11,922.91 : x
  2. Step 2: Convert to fraction form
    18,992.59/26,210.42 = 11,922.91/x
  3. Step 3: Cross multiply
    18,992.59x = 26,210.42 × 11,922.91
  4. Step 4: Simplify right side
    18,992.59x = 312,504,398.29
  5. Step 5: Solve for x
    x = 312,504,398.29/18,992.59
  6. Step 6: Final answer
    x = 16,454.02

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