Finding the Fourth Proportional to 9,255.79, 12,772.51 and 5,063.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,255.79 : 12,772.51 = 5,063.23 : x
2. Step 2: Convert to fraction form
   9,255.79/12,772.51 = 5,063.23/x
3. Step 3: Cross multiply
   9,255.79x = 12,772.51 × 5,063.23
4. Step 4: Simplify right side
   9,255.79x = 64,670,155.81
5. Step 5: Solve for x
   x = 64,670,155.81/9,255.79
6. Step 6: Final answer
   x = 6,986.99