Finding the Fourth Proportional to 9,162.53, 12,643.61 and 5,625.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162.53 : 12,643.61 = 5,625.78 : x
2. Step 2: Convert to fraction form
   9,162.53/12,643.61 = 5,625.78/x
3. Step 3: Cross multiply
   9,162.53x = 12,643.61 × 5,625.78
4. Step 4: Simplify right side
   9,162.53x = 71,130,168.27
5. Step 5: Solve for x
   x = 71,130,168.27/9,162.53
6. Step 6: Final answer
   x = 7,763.16