Finding the Fourth Proportional to 8,737.47, 12,057.34 and 4,758.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,737.47 : 12,057.34 = 4,758.57 : x
2. Step 2: Convert to fraction form
   8,737.47/12,057.34 = 4,758.57/x
3. Step 3: Cross multiply
   8,737.47x = 12,057.34 × 4,758.57
4. Step 4: Simplify right side
   8,737.47x = 57,375,696.40
5. Step 5: Solve for x
   x = 57,375,696.40/8,737.47
6. Step 6: Final answer
   x = 6,566.63