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Finding the Fourth Proportional to 15,789.78, 23,684.68 and 4,696.63

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Solution

The fourth proportional to 15,789.78, 23,684.68 and 4,696.63 is: 7,044.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.78 : 23,684.68 = 4,696.63 : x
  2. Step 2: Convert to fraction form
    15,789.78/23,684.68 = 4,696.63/x
  3. Step 3: Cross multiply
    15,789.78x = 23,684.68 × 4,696.63
  4. Step 4: Simplify right side
    15,789.78x = 111,238,155.15
  5. Step 5: Solve for x
    x = 111,238,155.15/15,789.78
  6. Step 6: Final answer
    x = 7,044.95

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