Finding the Fourth Proportional to 8,447.88, 12,683.32 and 4,752.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,447.88 : 12,683.32 = 4,752.72 : x
2. Step 2: Convert to fraction form
   8,447.88/12,683.32 = 4,752.72/x
3. Step 3: Cross multiply
   8,447.88x = 12,683.32 × 4,752.72
4. Step 4: Simplify right side
   8,447.88x = 60,280,193.33
5. Step 5: Solve for x
   x = 60,280,193.33/8,447.88
6. Step 6: Final answer
   x = 7,135.54