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Finding the Fourth Proportional to 15,700.58, 21,666.54 and 8,626.85

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Solution

The fourth proportional to 15,700.58, 21,666.54 and 8,626.85 is: 11,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.58 : 21,666.54 = 8,626.85 : x
  2. Step 2: Convert to fraction form
    15,700.58/21,666.54 = 8,626.85/x
  3. Step 3: Cross multiply
    15,700.58x = 21,666.54 × 8,626.85
  4. Step 4: Simplify right side
    15,700.58x = 186,913,882.27
  5. Step 5: Solve for x
    x = 186,913,882.27/15,700.58
  6. Step 6: Final answer
    x = 11,904.91

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