Finding the Fourth Proportional to 31,185.72, 43,036.88 and 17,038.26

Step by Step Solution

1. Step 1: Write the proportion equation
   31,185.72 : 43,036.88 = 17,038.26 : x
2. Step 2: Convert to fraction form
   31,185.72/43,036.88 = 17,038.26/x
3. Step 3: Cross multiply
   31,185.72x = 43,036.88 × 17,038.26
4. Step 4: Simplify right side
   31,185.72x = 733,273,465.84
5. Step 5: Solve for x
   x = 733,273,465.84/31,185.72
6. Step 6: Final answer
   x = 23,513.12