Finding the Fourth Proportional to 12,499.44, 17,246.24 and 8,522.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.44 : 17,246.24 = 8,522.72 : x
2. Step 2: Convert to fraction form
   12,499.44/17,246.24 = 8,522.72/x
3. Step 3: Cross multiply
   12,499.44x = 17,246.24 × 8,522.72
4. Step 4: Simplify right side
   12,499.44x = 146,984,874.57
5. Step 5: Solve for x
   x = 146,984,874.57/12,499.44
6. Step 6: Final answer
   x = 11,759.32