Finding the Fourth Proportional to 31,544.91, 43,530.51 and 18,106.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,544.91 : 43,530.51 = 18,106.71 : x
2. Step 2: Convert to fraction form
   31,544.91/43,530.51 = 18,106.71/x
3. Step 3: Cross multiply
   31,544.91x = 43,530.51 × 18,106.71
4. Step 4: Simplify right side
   31,544.91x = 788,194,320.72
5. Step 5: Solve for x
   x = 788,194,320.72/31,544.91
6. Step 6: Final answer
   x = 24,986.42