Finding the Fourth Proportional to 6,372.96, 8,781.72 and 4,880.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,372.96 : 8,781.72 = 4,880.88 : x
2. Step 2: Convert to fraction form
   6,372.96/8,781.72 = 4,880.88/x
3. Step 3: Cross multiply
   6,372.96x = 8,781.72 × 4,880.88
4. Step 4: Simplify right side
   6,372.96x = 42,862,521.51
5. Step 5: Solve for x
   x = 42,862,521.51/6,372.96
6. Step 6: Final answer
   x = 6,725.69