Finding the Fourth Proportional to 9,522.71, 13,139.48 and 5,273.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,522.71 : 13,139.48 = 5,273.57 : x
2. Step 2: Convert to fraction form
   9,522.71/13,139.48 = 5,273.57/x
3. Step 3: Cross multiply
   9,522.71x = 13,139.48 × 5,273.57
4. Step 4: Simplify right side
   9,522.71x = 69,291,875.48
5. Step 5: Solve for x
   x = 69,291,875.48/9,522.71
6. Step 6: Final answer
   x = 7,276.49