Finding the Fourth Proportional to 31,100.89, 42,919.22 and 16,953.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,100.89 : 42,919.22 = 16,953.73 : x
2. Step 2: Convert to fraction form
   31,100.89/42,919.22 = 16,953.73/x
3. Step 3: Cross multiply
   31,100.89x = 42,919.22 × 16,953.73
4. Step 4: Simplify right side
   31,100.89x = 727,640,867.69
5. Step 5: Solve for x
   x = 727,640,867.69/31,100.89
6. Step 6: Final answer
   x = 23,396.14