Finding the Fourth Proportional to 6,272.96, 8,656.88 and 3,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,272.96 : 8,656.88 = 3,478.72 : x
2. Step 2: Convert to fraction form
   6,272.96/8,656.88 = 3,478.72/x
3. Step 3: Cross multiply
   6,272.96x = 8,656.88 × 3,478.72
4. Step 4: Simplify right side
   6,272.96x = 30,114,861.59
5. Step 5: Solve for x
   x = 30,114,861.59/6,272.96
6. Step 6: Final answer
   x = 4,800.74