Finding the Fourth Proportional to 9,948.06, 13,726.80 and 5,755.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,948.06 : 13,726.80 = 5,755.50 : x
2. Step 2: Convert to fraction form
   9,948.06/13,726.80 = 5,755.50/x
3. Step 3: Cross multiply
   9,948.06x = 13,726.80 × 5,755.50
4. Step 4: Simplify right side
   9,948.06x = 79,004,597.40
5. Step 5: Solve for x
   x = 79,004,597.40/9,948.06
6. Step 6: Final answer
   x = 7,941.71