Finding the Fourth Proportional to 8,968.89, 12,377.47 and 7,474.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,968.89 : 12,377.47 = 7,474.31 : x
2. Step 2: Convert to fraction form
   8,968.89/12,377.47 = 7,474.31/x
3. Step 3: Cross multiply
   8,968.89x = 12,377.47 × 7,474.31
4. Step 4: Simplify right side
   8,968.89x = 92,513,047.80
5. Step 5: Solve for x
   x = 92,513,047.80/8,968.89
6. Step 6: Final answer
   x = 10,314.88