Finding the Fourth Proportional to 10,956.21, 16,435.71 and 3,561.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,956.21 : 16,435.71 = 3,561.42 : x
2. Step 2: Convert to fraction form
   10,956.21/16,435.71 = 3,561.42/x
3. Step 3: Cross multiply
   10,956.21x = 16,435.71 × 3,561.42
4. Step 4: Simplify right side
   10,956.21x = 58,534,466.31
5. Step 5: Solve for x
   x = 58,534,466.31/10,956.21
6. Step 6: Final answer
   x = 5,342.58