Finding the Fourth Proportional to 10,244.09, 14,128.99 and 7,726.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,244.09 : 14,128.99 = 7,726.61 : x
2. Step 2: Convert to fraction form
   10,244.09/14,128.99 = 7,726.61/x
3. Step 3: Cross multiply
   10,244.09x = 14,128.99 × 7,726.61
4. Step 4: Simplify right side
   10,244.09x = 109,169,211.43
5. Step 5: Solve for x
   x = 109,169,211.43/10,244.09
6. Step 6: Final answer
   x = 10,656.80