Finding the Fourth Proportional to 9,255.76, 12,772.94 and 5,064.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,255.76 : 12,772.94 = 5,064.10 : x
2. Step 2: Convert to fraction form
   9,255.76/12,772.94 = 5,064.10/x
3. Step 3: Cross multiply
   9,255.76x = 12,772.94 × 5,064.10
4. Step 4: Simplify right side
   9,255.76x = 64,683,445.45
5. Step 5: Solve for x
   x = 64,683,445.45/9,255.76
6. Step 6: Final answer
   x = 6,988.45