Finding the Fourth Proportional to 9,726.81, 13,422.24 and 5,747.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,726.81 : 13,422.24 = 5,747.17 : x
2. Step 2: Convert to fraction form
   9,726.81/13,422.24 = 5,747.17/x
3. Step 3: Cross multiply
   9,726.81x = 13,422.24 × 5,747.17
4. Step 4: Simplify right side
   9,726.81x = 77,139,895.06
5. Step 5: Solve for x
   x = 77,139,895.06/9,726.81
6. Step 6: Final answer
   x = 7,930.65