Finding the Fourth Proportional to 6,368.72, 8,788.82 and 3,715.61

Step by Step Solution

1. Step 1: Write the proportion equation
   6,368.72 : 8,788.82 = 3,715.61 : x
2. Step 2: Convert to fraction form
   6,368.72/8,788.82 = 3,715.61/x
3. Step 3: Cross multiply
   6,368.72x = 8,788.82 × 3,715.61
4. Step 4: Simplify right side
   6,368.72x = 32,655,827.48
5. Step 5: Solve for x
   x = 32,655,827.48/6,368.72
6. Step 6: Final answer
   x = 5,127.54