Finding the Fourth Proportional to 31,566.39, 43,559.82 and 18,141.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,566.39 : 43,559.82 = 18,141.05 : x
2. Step 2: Convert to fraction form
   31,566.39/43,559.82 = 18,141.05/x
3. Step 3: Cross multiply
   31,566.39x = 43,559.82 × 18,141.05
4. Step 4: Simplify right side
   31,566.39x = 790,220,654.81
5. Step 5: Solve for x
   x = 790,220,654.81/31,566.39
6. Step 6: Final answer
   x = 25,033.61