Finding the Fourth Proportional to 31,743.31, 47,561.37 and 19,225.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,743.31 : 47,561.37 = 19,225.57 : x
2. Step 2: Convert to fraction form
   31,743.31/47,561.37 = 19,225.57/x
3. Step 3: Cross multiply
   31,743.31x = 47,561.37 × 19,225.57
4. Step 4: Simplify right side
   31,743.31x = 914,394,448.23
5. Step 5: Solve for x
   x = 914,394,448.23/31,743.31
6. Step 6: Final answer
   x = 28,805.89