Finding the Fourth Proportional to 9,039.38, 13,554.57 and 5,759.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,039.38 : 13,554.57 = 5,759.06 : x
2. Step 2: Convert to fraction form
   9,039.38/13,554.57 = 5,759.06/x
3. Step 3: Cross multiply
   9,039.38x = 13,554.57 × 5,759.06
4. Step 4: Simplify right side
   9,039.38x = 78,061,581.90
5. Step 5: Solve for x
   x = 78,061,581.90/9,039.38
6. Step 6: Final answer
   x = 8,635.72