Finding the Fourth Proportional to 8,785.41, 12,124.17 and 5,009.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,785.41 : 12,124.17 = 5,009.15 : x
2. Step 2: Convert to fraction form
   8,785.41/12,124.17 = 5,009.15/x
3. Step 3: Cross multiply
   8,785.41x = 12,124.17 × 5,009.15
4. Step 4: Simplify right side
   8,785.41x = 60,731,725.53
5. Step 5: Solve for x
   x = 60,731,725.53/8,785.41
6. Step 6: Final answer
   x = 6,912.79