Finding the Fourth Proportional to 9,326.43, 12,869.32 and 5,549.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,326.43 : 12,869.32 = 5,549.76 : x
2. Step 2: Convert to fraction form
   9,326.43/12,869.32 = 5,549.76/x
3. Step 3: Cross multiply
   9,326.43x = 12,869.32 × 5,549.76
4. Step 4: Simplify right side
   9,326.43x = 71,421,545.27
5. Step 5: Solve for x
   x = 71,421,545.27/9,326.43
6. Step 6: Final answer
   x = 7,657.98