Finding the Fourth Proportional to 31,314.87, 43,222.82 and 19,371.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,314.87 : 43,222.82 = 19,371.42 : x
2. Step 2: Convert to fraction form
   31,314.87/43,222.82 = 19,371.42/x
3. Step 3: Cross multiply
   31,314.87x = 43,222.82 × 19,371.42
4. Step 4: Simplify right side
   31,314.87x = 837,287,302.95
5. Step 5: Solve for x
   x = 837,287,302.95/31,314.87
6. Step 6: Final answer
   x = 26,737.69