Finding the Fourth Proportional to 10,153.17, 15,225.71 and 3,909.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,153.17 : 15,225.71 = 3,909.69 : x
2. Step 2: Convert to fraction form
   10,153.17/15,225.71 = 3,909.69/x
3. Step 3: Cross multiply
   10,153.17x = 15,225.71 × 3,909.69
4. Step 4: Simplify right side
   10,153.17x = 59,527,786.58
5. Step 5: Solve for x
   x = 59,527,786.58/10,153.17
6. Step 6: Final answer
   x = 5,862.98