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Finding the Fourth Proportional to 15,920.46, 23,878.80 and 4,826.70

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Solution

The fourth proportional to 15,920.46, 23,878.80 and 4,826.70 is: 7,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.46 : 23,878.80 = 4,826.70 : x
  2. Step 2: Convert to fraction form
    15,920.46/23,878.80 = 4,826.70/x
  3. Step 3: Cross multiply
    15,920.46x = 23,878.80 × 4,826.70
  4. Step 4: Simplify right side
    15,920.46x = 115,255,803.96
  5. Step 5: Solve for x
    x = 115,255,803.96/15,920.46
  6. Step 6: Final answer
    x = 7,239.48

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