Finding the Fourth Proportional to 31,698.72, 43,742.32 and 17,550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,698.72 : 43,742.32 = 17,550.72 : x
2. Step 2: Convert to fraction form
   31,698.72/43,742.32 = 17,550.72/x
3. Step 3: Cross multiply
   31,698.72x = 43,742.32 × 17,550.72
4. Step 4: Simplify right side
   31,698.72x = 767,709,210.47
5. Step 5: Solve for x
   x = 767,709,210.47/31,698.72
6. Step 6: Final answer
   x = 24,218.93