Finding the Fourth Proportional to 12,557.59, 17,330.01 and 7,522.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,557.59 : 17,330.01 = 7,522.63 : x
2. Step 2: Convert to fraction form
   12,557.59/17,330.01 = 7,522.63/x
3. Step 3: Cross multiply
   12,557.59x = 17,330.01 × 7,522.63
4. Step 4: Simplify right side
   12,557.59x = 130,367,253.13
5. Step 5: Solve for x
   x = 130,367,253.13/12,557.59
6. Step 6: Final answer
   x = 10,381.55