Finding the Fourth Proportional to 12,557.46, 17,329.84 and 7,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,557.46 : 17,329.84 = 7,522.50 : x
2. Step 2: Convert to fraction form
   12,557.46/17,329.84 = 7,522.50/x
3. Step 3: Cross multiply
   12,557.46x = 17,329.84 × 7,522.50
4. Step 4: Simplify right side
   12,557.46x = 130,363,702.59
5. Step 5: Solve for x
   x = 130,363,702.59/12,557.46
6. Step 6: Final answer
   x = 10,381.38