Finding the Fourth Proportional to 31,218.16, 43,081.82 and 17,072.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,218.16 : 43,081.82 = 17,072.08 : x
2. Step 2: Convert to fraction form
   31,218.16/43,081.82 = 17,072.08/x
3. Step 3: Cross multiply
   31,218.16x = 43,081.82 × 17,072.08
4. Step 4: Simplify right side
   31,218.16x = 735,496,277.59
5. Step 5: Solve for x
   x = 735,496,277.59/31,218.16
6. Step 6: Final answer
   x = 23,559.89