Finding the Fourth Proportional to 8,500.50, 12,753.18 and 3,307.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,500.50 : 12,753.18 = 3,307.86 : x
2. Step 2: Convert to fraction form
   8,500.50/12,753.18 = 3,307.86/x
3. Step 3: Cross multiply
   8,500.50x = 12,753.18 × 3,307.86
4. Step 4: Simplify right side
   8,500.50x = 42,185,733.99
5. Step 5: Solve for x
   x = 42,185,733.99/8,500.50
6. Step 6: Final answer
   x = 4,962.74