Finding the Fourth Proportional to 31,815.09, 43,906.20 and 17,667.95

Step by Step Solution

1. Step 1: Write the proportion equation
   31,815.09 : 43,906.20 = 17,667.95 : x
2. Step 2: Convert to fraction form
   31,815.09/43,906.20 = 17,667.95/x
3. Step 3: Cross multiply
   31,815.09x = 43,906.20 × 17,667.95
4. Step 4: Simplify right side
   31,815.09x = 775,732,326.76
5. Step 5: Solve for x
   x = 775,732,326.76/31,815.09
6. Step 6: Final answer
   x = 24,382.53