Finding the Fourth Proportional to 10,787.78, 14,885.75 and 6,071.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,787.78 : 14,885.75 = 6,071.15 : x
2. Step 2: Convert to fraction form
   10,787.78/14,885.75 = 6,071.15/x
3. Step 3: Cross multiply
   10,787.78x = 14,885.75 × 6,071.15
4. Step 4: Simplify right side
   10,787.78x = 90,373,561.86
5. Step 5: Solve for x
   x = 90,373,561.86/10,787.78
6. Step 6: Final answer
   x = 8,377.41