Finding the Fourth Proportional to 9,025.68, 12,433.86 and 7,421.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,025.68 : 12,433.86 = 7,421.88 : x
2. Step 2: Convert to fraction form
   9,025.68/12,433.86 = 7,421.88/x
3. Step 3: Cross multiply
   9,025.68x = 12,433.86 × 7,421.88
4. Step 4: Simplify right side
   9,025.68x = 92,282,616.86
5. Step 5: Solve for x
   x = 92,282,616.86/9,025.68
6. Step 6: Final answer
   x = 10,224.45