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Finding the Fourth Proportional to 18,947.79, 28,423.04 and 5,798.45

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Solution

The fourth proportional to 18,947.79, 28,423.04 and 5,798.45 is: 8,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.79 : 28,423.04 = 5,798.45 : x
  2. Step 2: Convert to fraction form
    18,947.79/28,423.04 = 5,798.45/x
  3. Step 3: Cross multiply
    18,947.79x = 28,423.04 × 5,798.45
  4. Step 4: Simplify right side
    18,947.79x = 164,809,618.35
  5. Step 5: Solve for x
    x = 164,809,618.35/18,947.79
  6. Step 6: Final answer
    x = 8,698.09

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