Finding the Fourth Proportional to 9,043.75, 12,480.77 and 5,685.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,043.75 : 12,480.77 = 5,685.29 : x
2. Step 2: Convert to fraction form
   9,043.75/12,480.77 = 5,685.29/x
3. Step 3: Cross multiply
   9,043.75x = 12,480.77 × 5,685.29
4. Step 4: Simplify right side
   9,043.75x = 70,956,706.04
5. Step 5: Solve for x
   x = 70,956,706.04/9,043.75
6. Step 6: Final answer
   x = 7,845.94