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Finding the Fourth Proportional to 15,406.06, 23,109.09 and 3,719.28

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Solution

The fourth proportional to 15,406.06, 23,109.09 and 3,719.28 is: 5,578.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.06 : 23,109.09 = 3,719.28 : x
  2. Step 2: Convert to fraction form
    15,406.06/23,109.09 = 3,719.28/x
  3. Step 3: Cross multiply
    15,406.06x = 23,109.09 × 3,719.28
  4. Step 4: Simplify right side
    15,406.06x = 85,949,176.26
  5. Step 5: Solve for x
    x = 85,949,176.26/15,406.06
  6. Step 6: Final answer
    x = 5,578.92

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