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Finding the Fourth Proportional to 8,579.52, 12,870.20 and 3,036.08

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Solution

The fourth proportional to 8,579.52, 12,870.20 and 3,036.08 is: 4,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.52 : 12,870.20 = 3,036.08 : x
  2. Step 2: Convert to fraction form
    8,579.52/12,870.20 = 3,036.08/x
  3. Step 3: Cross multiply
    8,579.52x = 12,870.20 × 3,036.08
  4. Step 4: Simplify right side
    8,579.52x = 39,074,956.82
  5. Step 5: Solve for x
    x = 39,074,956.82/8,579.52
  6. Step 6: Final answer
    x = 4,554.45

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