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Finding the Fourth Proportional to 10,599.54, 15,870.15 and 7,994.58

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Solution

The fourth proportional to 10,599.54, 15,870.15 and 7,994.58 is: 11,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,599.54 : 15,870.15 = 7,994.58 : x
  2. Step 2: Convert to fraction form
    10,599.54/15,870.15 = 7,994.58/x
  3. Step 3: Cross multiply
    10,599.54x = 15,870.15 × 7,994.58
  4. Step 4: Simplify right side
    10,599.54x = 126,875,183.79
  5. Step 5: Solve for x
    x = 126,875,183.79/10,599.54
  6. Step 6: Final answer
    x = 11,969.88

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