Finding the Fourth Proportional to 12,532.55, 17,290.08 and 7,155.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,532.55 : 17,290.08 = 7,155.29 : x
2. Step 2: Convert to fraction form
   12,532.55/17,290.08 = 7,155.29/x
3. Step 3: Cross multiply
   12,532.55x = 17,290.08 × 7,155.29
4. Step 4: Simplify right side
   12,532.55x = 123,715,450.07
5. Step 5: Solve for x
   x = 123,715,450.07/12,532.55
6. Step 6: Final answer
   x = 9,871.53