Finding the Fourth Proportional to 9,018.31, 13,529.39 and 5,323.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.31 : 13,529.39 = 5,323.29 : x
2. Step 2: Convert to fraction form
   9,018.31/13,529.39 = 5,323.29/x
3. Step 3: Cross multiply
   9,018.31x = 13,529.39 × 5,323.29
4. Step 4: Simplify right side
   9,018.31x = 72,020,839.88
5. Step 5: Solve for x
   x = 72,020,839.88/9,018.31
6. Step 6: Final answer
   x = 7,986.07