Finding the Fourth Proportional to 11,124.50, 16,677.32 and 4,879.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,124.50 : 16,677.32 = 4,879.78 : x
2. Step 2: Convert to fraction form
   11,124.50/16,677.32 = 4,879.78/x
3. Step 3: Cross multiply
   11,124.50x = 16,677.32 × 4,879.78
4. Step 4: Simplify right side
   11,124.50x = 81,381,586.50
5. Step 5: Solve for x
   x = 81,381,586.50/11,124.50
6. Step 6: Final answer
   x = 7,315.53