Finding the Fourth Proportional to 31,101.38, 42,919.91 and 17,672.65

Step by Step Solution

1. Step 1: Write the proportion equation
   31,101.38 : 42,919.91 = 17,672.65 : x
2. Step 2: Convert to fraction form
   31,101.38/42,919.91 = 17,672.65/x
3. Step 3: Cross multiply
   31,101.38x = 42,919.91 × 17,672.65
4. Step 4: Simplify right side
   31,101.38x = 758,508,484.34
5. Step 5: Solve for x
   x = 758,508,484.34/31,101.38
6. Step 6: Final answer
   x = 24,388.26