Finding the Fourth Proportional to 12,654.80, 17,446.50 and 9,472.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,654.80 : 17,446.50 = 9,472.76 : x
2. Step 2: Convert to fraction form
   12,654.80/17,446.50 = 9,472.76/x
3. Step 3: Cross multiply
   12,654.80x = 17,446.50 × 9,472.76
4. Step 4: Simplify right side
   12,654.80x = 165,266,507.34
5. Step 5: Solve for x
   x = 165,266,507.34/12,654.80
6. Step 6: Final answer
   x = 13,059.59