Finding the Fourth Proportional to 10,005.72, 15,008.18 and 2,610.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,005.72 : 15,008.18 = 2,610.24 : x
2. Step 2: Convert to fraction form
   10,005.72/15,008.18 = 2,610.24/x
3. Step 3: Cross multiply
   10,005.72x = 15,008.18 × 2,610.24
4. Step 4: Simplify right side
   10,005.72x = 39,174,938.71
5. Step 5: Solve for x
   x = 39,174,938.71/10,005.72
6. Step 6: Final answer
   x = 3,915.25