Finding the Fourth Proportional to 9,388.71, 14,088.53 and 3,545.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,388.71 : 14,088.53 = 3,545.78 : x
2. Step 2: Convert to fraction form
   9,388.71/14,088.53 = 3,545.78/x
3. Step 3: Cross multiply
   9,388.71x = 14,088.53 × 3,545.78
4. Step 4: Simplify right side
   9,388.71x = 49,954,766.33
5. Step 5: Solve for x
   x = 49,954,766.33/9,388.71
6. Step 6: Final answer
   x = 5,320.73