Finding the Fourth Proportional to 9,549.43, 13,178.31 and 5,515.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,549.43 : 13,178.31 = 5,515.96 : x
2. Step 2: Convert to fraction form
   9,549.43/13,178.31 = 5,515.96/x
3. Step 3: Cross multiply
   9,549.43x = 13,178.31 × 5,515.96
4. Step 4: Simplify right side
   9,549.43x = 72,691,030.83
5. Step 5: Solve for x
   x = 72,691,030.83/9,549.43
6. Step 6: Final answer
   x = 7,612.08