Finding the Fourth Proportional to 9,901.17, 13,665.39 and 5,922.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,901.17 : 13,665.39 = 5,922.72 : x
2. Step 2: Convert to fraction form
   9,901.17/13,665.39 = 5,922.72/x
3. Step 3: Cross multiply
   9,901.17x = 13,665.39 × 5,922.72
4. Step 4: Simplify right side
   9,901.17x = 80,936,278.66
5. Step 5: Solve for x
   x = 80,936,278.66/9,901.17
6. Step 6: Final answer
   x = 8,174.42