Finding the Fourth Proportional to 31,690.88, 43,736.46 and 17,543.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,690.88 : 43,736.46 = 17,543.72 : x
2. Step 2: Convert to fraction form
   31,690.88/43,736.46 = 17,543.72/x
3. Step 3: Cross multiply
   31,690.88x = 43,736.46 × 17,543.72
4. Step 4: Simplify right side
   31,690.88x = 767,300,251.58
5. Step 5: Solve for x
   x = 767,300,251.58/31,690.88
6. Step 6: Final answer
   x = 24,212.02