Finding the Fourth Proportional to 8,737.74, 12,057.86 and 5,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,737.74 : 12,057.86 = 5,011.50 : x
2. Step 2: Convert to fraction form
   8,737.74/12,057.86 = 5,011.50/x
3. Step 3: Cross multiply
   8,737.74x = 12,057.86 × 5,011.50
4. Step 4: Simplify right side
   8,737.74x = 60,427,965.39
5. Step 5: Solve for x
   x = 60,427,965.39/8,737.74
6. Step 6: Final answer
   x = 6,915.74