Finding the Fourth Proportional to 8,956.91, 12,361.55 and 5,422.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,956.91 : 12,361.55 = 5,422.07 : x
2. Step 2: Convert to fraction form
   8,956.91/12,361.55 = 5,422.07/x
3. Step 3: Cross multiply
   8,956.91x = 12,361.55 × 5,422.07
4. Step 4: Simplify right side
   8,956.91x = 67,025,193.20
5. Step 5: Solve for x
   x = 67,025,193.20/8,956.91
6. Step 6: Final answer
   x = 7,483.07