Finding the Fourth Proportional to 8,787.38, 12,126.69 and 5,061.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,787.38 : 12,126.69 = 5,061.38 : x
2. Step 2: Convert to fraction form
   8,787.38/12,126.69 = 5,061.38/x
3. Step 3: Cross multiply
   8,787.38x = 12,126.69 × 5,061.38
4. Step 4: Simplify right side
   8,787.38x = 61,377,725.60
5. Step 5: Solve for x
   x = 61,377,725.60/8,787.38
6. Step 6: Final answer
   x = 6,984.76