Finding the Fourth Proportional to 10,956.72, 16,435.31 and 3,561.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,956.72 : 16,435.31 = 3,561.17 : x
2. Step 2: Convert to fraction form
   10,956.72/16,435.31 = 3,561.17/x
3. Step 3: Cross multiply
   10,956.72x = 16,435.31 × 3,561.17
4. Step 4: Simplify right side
   10,956.72x = 58,528,832.93
5. Step 5: Solve for x
   x = 58,528,832.93/10,956.72
6. Step 6: Final answer
   x = 5,341.82