Finding the Fourth Proportional to 10,390.17, 15,587.29 and 3,816.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,390.17 : 15,587.29 = 3,816.41 : x
2. Step 2: Convert to fraction form
   10,390.17/15,587.29 = 3,816.41/x
3. Step 3: Cross multiply
   10,390.17x = 15,587.29 × 3,816.41
4. Step 4: Simplify right side
   10,390.17x = 59,487,401.95
5. Step 5: Solve for x
   x = 59,487,401.95/10,390.17
6. Step 6: Final answer
   x = 5,725.35