Finding the Fourth Proportional to 31,567.42, 43,561.20 and 17,420.26

Step by Step Solution

1. Step 1: Write the proportion equation
   31,567.42 : 43,561.20 = 17,420.26 : x
2. Step 2: Convert to fraction form
   31,567.42/43,561.20 = 17,420.26/x
3. Step 3: Cross multiply
   31,567.42x = 43,561.20 × 17,420.26
4. Step 4: Simplify right side
   31,567.42x = 758,847,429.91
5. Step 5: Solve for x
   x = 758,847,429.91/31,567.42
6. Step 6: Final answer
   x = 24,038.94