Finding the Fourth Proportional to 9,105.20, 12,564.90 and 5,126.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,105.20 : 12,564.90 = 5,126.52 : x
2. Step 2: Convert to fraction form
   9,105.20/12,564.90 = 5,126.52/x
3. Step 3: Cross multiply
   9,105.20x = 12,564.90 × 5,126.52
4. Step 4: Simplify right side
   9,105.20x = 64,414,211.15
5. Step 5: Solve for x
   x = 64,414,211.15/9,105.20
6. Step 6: Final answer
   x = 7,074.44