Finding the Fourth Proportional to 12,535.20, 18,807.60 and 5,604.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,535.20 : 18,807.60 = 5,604.72 : x
2. Step 2: Convert to fraction form
   12,535.20/18,807.60 = 5,604.72/x
3. Step 3: Cross multiply
   12,535.20x = 18,807.60 × 5,604.72
4. Step 4: Simplify right side
   12,535.20x = 105,411,331.87
5. Step 5: Solve for x
   x = 105,411,331.87/12,535.20
6. Step 6: Final answer
   x = 8,409.23