Finding the Fourth Proportional to 8,792.78, 13,184.90 and 3,248.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,792.78 : 13,184.90 = 3,248.72 : x
2. Step 2: Convert to fraction form
   8,792.78/13,184.90 = 3,248.72/x
3. Step 3: Cross multiply
   8,792.78x = 13,184.90 × 3,248.72
4. Step 4: Simplify right side
   8,792.78x = 42,834,048.33
5. Step 5: Solve for x
   x = 42,834,048.33/8,792.78
6. Step 6: Final answer
   x = 4,871.50