Finding the Fourth Proportional to 10,956.64, 16,433.42 and 3,561.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,956.64 : 16,433.42 = 3,561.20 : x
2. Step 2: Convert to fraction form
   10,956.64/16,433.42 = 3,561.20/x
3. Step 3: Cross multiply
   10,956.64x = 16,433.42 × 3,561.20
4. Step 4: Simplify right side
   10,956.64x = 58,522,695.30
5. Step 5: Solve for x
   x = 58,522,695.30/10,956.64
6. Step 6: Final answer
   x = 5,341.30