Finding the Fourth Proportional to 8,334.50, 12,499.15 and 2,786.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,334.50 : 12,499.15 = 2,786.56 : x
2. Step 2: Convert to fraction form
   8,334.50/12,499.15 = 2,786.56/x
3. Step 3: Cross multiply
   8,334.50x = 12,499.15 × 2,786.56
4. Step 4: Simplify right side
   8,334.50x = 34,829,593.21
5. Step 5: Solve for x
   x = 34,829,593.21/8,334.50
6. Step 6: Final answer
   x = 4,178.97