Finding the Fourth Proportional to 8,900.71, 12,283.52 and 4,921.73

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.71 : 12,283.52 = 4,921.73 : x
2. Step 2: Convert to fraction form
   8,900.71/12,283.52 = 4,921.73/x
3. Step 3: Cross multiply
   8,900.71x = 12,283.52 × 4,921.73
4. Step 4: Simplify right side
   8,900.71x = 60,456,168.89
5. Step 5: Solve for x
   x = 60,456,168.89/8,900.71
6. Step 6: Final answer
   x = 6,792.29