Finding the Fourth Proportional to 10,155.26, 15,234.17 and 3,915.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.26 : 15,234.17 = 3,915.10 : x
2. Step 2: Convert to fraction form
   10,155.26/15,234.17 = 3,915.10/x
3. Step 3: Cross multiply
   10,155.26x = 15,234.17 × 3,915.10
4. Step 4: Simplify right side
   10,155.26x = 59,643,298.97
5. Step 5: Solve for x
   x = 59,643,298.97/10,155.26
6. Step 6: Final answer
   x = 5,873.14