Finding the Fourth Proportional to 31,645.89, 43,673.18 and 17,500.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,645.89 : 43,673.18 = 17,500.05 : x
2. Step 2: Convert to fraction form
   31,645.89/43,673.18 = 17,500.05/x
3. Step 3: Cross multiply
   31,645.89x = 43,673.18 × 17,500.05
4. Step 4: Simplify right side
   31,645.89x = 764,282,746.16
5. Step 5: Solve for x
   x = 764,282,746.16/31,645.89
6. Step 6: Final answer
   x = 24,151.09