Finding the Fourth Proportional to 31,567.88, 43,524.27 and 20,218.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,567.88 : 43,524.27 = 20,218.71 : x
2. Step 2: Convert to fraction form
   31,567.88/43,524.27 = 20,218.71/x
3. Step 3: Cross multiply
   31,567.88x = 43,524.27 × 20,218.71
4. Step 4: Simplify right side
   31,567.88x = 880,004,593.09
5. Step 5: Solve for x
   x = 880,004,593.09/31,567.88
6. Step 6: Final answer
   x = 27,876.59