Finding the Fourth Proportional to 11,575.52, 17,369.04 and 8,522.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,575.52 : 17,369.04 = 8,522.72 : x
2. Step 2: Convert to fraction form
   11,575.52/17,369.04 = 8,522.72/x
3. Step 3: Cross multiply
   11,575.52x = 17,369.04 × 8,522.72
4. Step 4: Simplify right side
   11,575.52x = 148,031,464.59
5. Step 5: Solve for x
   x = 148,031,464.59/11,575.52
6. Step 6: Final answer
   x = 12,788.32