Finding the Fourth Proportional to 9,522.38, 13,139.58 and 5,272.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,522.38 : 13,139.58 = 5,272.82 : x
2. Step 2: Convert to fraction form
   9,522.38/13,139.58 = 5,272.82/x
3. Step 3: Cross multiply
   9,522.38x = 13,139.58 × 5,272.82
4. Step 4: Simplify right side
   9,522.38x = 69,282,640.22
5. Step 5: Solve for x
   x = 69,282,640.22/9,522.38
6. Step 6: Final answer
   x = 7,275.77