Finding the Fourth Proportional to 8,333.15, 12,500.76 and 2,790.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,333.15 : 12,500.76 = 2,790.48 : x
2. Step 2: Convert to fraction form
   8,333.15/12,500.76 = 2,790.48/x
3. Step 3: Cross multiply
   8,333.15x = 12,500.76 × 2,790.48
4. Step 4: Simplify right side
   8,333.15x = 34,883,049.09
5. Step 5: Solve for x
   x = 34,883,049.09/8,333.15
6. Step 6: Final answer
   x = 4,186.06