Finding the Fourth Proportional to 9,462.55, 14,171.94 and 9,134.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,462.55 : 14,171.94 = 9,134.50 : x
2. Step 2: Convert to fraction form
   9,462.55/14,171.94 = 9,134.50/x
3. Step 3: Cross multiply
   9,462.55x = 14,171.94 × 9,134.50
4. Step 4: Simplify right side
   9,462.55x = 129,453,585.93
5. Step 5: Solve for x
   x = 129,453,585.93/9,462.55
6. Step 6: Final answer
   x = 13,680.62