Finding the Fourth Proportional to 12,627.20, 17,419.68 and 7,520.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,627.20 : 17,419.68 = 7,520.48 : x
2. Step 2: Convert to fraction form
   12,627.20/17,419.68 = 7,520.48/x
3. Step 3: Cross multiply
   12,627.20x = 17,419.68 × 7,520.48
4. Step 4: Simplify right side
   12,627.20x = 131,004,355.05
5. Step 5: Solve for x
   x = 131,004,355.05/12,627.20
6. Step 6: Final answer
   x = 10,374.77