Finding the Fourth Proportional to 10,076.99, 13,869.54 and 8,874.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,076.99 : 13,869.54 = 8,874.10 : x
2. Step 2: Convert to fraction form
   10,076.99/13,869.54 = 8,874.10/x
3. Step 3: Cross multiply
   10,076.99x = 13,869.54 × 8,874.10
4. Step 4: Simplify right side
   10,076.99x = 123,079,702.25
5. Step 5: Solve for x
   x = 123,079,702.25/10,076.99
6. Step 6: Final answer
   x = 12,213.94