Finding the Fourth Proportional to 10,040.47, 15,061.43 and 2,644.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,040.47 : 15,061.43 = 2,644.88 : x
2. Step 2: Convert to fraction form
   10,040.47/15,061.43 = 2,644.88/x
3. Step 3: Cross multiply
   10,040.47x = 15,061.43 × 2,644.88
4. Step 4: Simplify right side
   10,040.47x = 39,835,606.28
5. Step 5: Solve for x
   x = 39,835,606.28/10,040.47
6. Step 6: Final answer
   x = 3,967.51