Finding the Fourth Proportional to 8,880.99, 12,256.43 and 5,746.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,880.99 : 12,256.43 = 5,746.29 : x
2. Step 2: Convert to fraction form
   8,880.99/12,256.43 = 5,746.29/x
3. Step 3: Cross multiply
   8,880.99x = 12,256.43 × 5,746.29
4. Step 4: Simplify right side
   8,880.99x = 70,428,972.41
5. Step 5: Solve for x
   x = 70,428,972.41/8,880.99
6. Step 6: Final answer
   x = 7,930.31