Finding the Fourth Proportional to 10,013.76, 15,020.22 and 2,517.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,013.76 : 15,020.22 = 2,517.30 : x
2. Step 2: Convert to fraction form
   10,013.76/15,020.22 = 2,517.30/x
3. Step 3: Cross multiply
   10,013.76x = 15,020.22 × 2,517.30
4. Step 4: Simplify right side
   10,013.76x = 37,810,399.81
5. Step 5: Solve for x
   x = 37,810,399.81/10,013.76
6. Step 6: Final answer
   x = 3,775.84