Finding the Fourth Proportional to 9,265.50, 12,700.62 and 9,140.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,265.50 : 12,700.62 = 9,140.94 : x
2. Step 2: Convert to fraction form
   9,265.50/12,700.62 = 9,140.94/x
3. Step 3: Cross multiply
   9,265.50x = 12,700.62 × 9,140.94
4. Step 4: Simplify right side
   9,265.50x = 116,095,605.38
5. Step 5: Solve for x
   x = 116,095,605.38/9,265.50
6. Step 6: Final answer
   x = 12,529.88