Finding the Fourth Proportional to 8,937.86, 12,339.86 and 5,756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,937.86 : 12,339.86 = 5,756.72 : x
2. Step 2: Convert to fraction form
   8,937.86/12,339.86 = 5,756.72/x
3. Step 3: Cross multiply
   8,937.86x = 12,339.86 × 5,756.72
4. Step 4: Simplify right side
   8,937.86x = 71,037,028.38
5. Step 5: Solve for x
   x = 71,037,028.38/8,937.86
6. Step 6: Final answer
   x = 7,947.88