Finding the Fourth Proportional to 9,132.59, 13,687.85 and 4,445.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,132.59 : 13,687.85 = 4,445.57 : x
2. Step 2: Convert to fraction form
   9,132.59/13,687.85 = 4,445.57/x
3. Step 3: Cross multiply
   9,132.59x = 13,687.85 × 4,445.57
4. Step 4: Simplify right side
   9,132.59x = 60,850,340.66
5. Step 5: Solve for x
   x = 60,850,340.66/9,132.59
6. Step 6: Final answer
   x = 6,662.99