Finding the Fourth Proportional to 31,624.79, 43,651.40 and 18,205.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,624.79 : 43,651.40 = 18,205.52 : x
2. Step 2: Convert to fraction form
   31,624.79/43,651.40 = 18,205.52/x
3. Step 3: Cross multiply
   31,624.79x = 43,651.40 × 18,205.52
4. Step 4: Simplify right side
   31,624.79x = 794,696,453.83
5. Step 5: Solve for x
   x = 794,696,453.83/31,624.79
6. Step 6: Final answer
   x = 25,128.91