Finding the Fourth Proportional to 8,787.34, 12,127.89 and 5,010.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,787.34 : 12,127.89 = 5,010.51 : x
2. Step 2: Convert to fraction form
   8,787.34/12,127.89 = 5,010.51/x
3. Step 3: Cross multiply
   8,787.34x = 12,127.89 × 5,010.51
4. Step 4: Simplify right side
   8,787.34x = 60,766,914.12
5. Step 5: Solve for x
   x = 60,766,914.12/8,787.34
6. Step 6: Final answer
   x = 6,915.28