Finding the Fourth Proportional to 12,529.50, 17,290.71 and 7,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,529.50 : 17,290.71 = 7,561.50 : x
2. Step 2: Convert to fraction form
   12,529.50/17,290.71 = 7,561.50/x
3. Step 3: Cross multiply
   12,529.50x = 17,290.71 × 7,561.50
4. Step 4: Simplify right side
   12,529.50x = 130,743,703.67
5. Step 5: Solve for x
   x = 130,743,703.67/12,529.50
6. Step 6: Final answer
   x = 10,434.87