Finding the Fourth Proportional to 8,275.08, 12,411.54 and 3,657

Step by Step Solution

1. Step 1: Write the proportion equation
   8,275.08 : 12,411.54 = 3,657 : x
2. Step 2: Convert to fraction form
   8,275.08/12,411.54 = 3,657/x
3. Step 3: Cross multiply
   8,275.08x = 12,411.54 × 3,657
4. Step 4: Simplify right side
   8,275.08x = 45,389,001.78
5. Step 5: Solve for x
   x = 45,389,001.78/8,275.08
6. Step 6: Final answer
   x = 5,485.02