Finding the Fourth Proportional to 8,754.38, 12,077.61 and 5,391.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,754.38 : 12,077.61 = 5,391.37 : x
2. Step 2: Convert to fraction form
   8,754.38/12,077.61 = 5,391.37/x
3. Step 3: Cross multiply
   8,754.38x = 12,077.61 × 5,391.37
4. Step 4: Simplify right side
   8,754.38x = 65,114,834.03
5. Step 5: Solve for x
   x = 65,114,834.03/8,754.38
6. Step 6: Final answer
   x = 7,437.97