Finding the Fourth Proportional to 31,370.90, 43,293.57 and 17,942.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,370.90 : 43,293.57 = 17,942.72 : x
2. Step 2: Convert to fraction form
   31,370.90/43,293.57 = 17,942.72/x
3. Step 3: Cross multiply
   31,370.90x = 43,293.57 × 17,942.72
4. Step 4: Simplify right side
   31,370.90x = 776,804,404.31
5. Step 5: Solve for x
   x = 776,804,404.31/31,370.90
6. Step 6: Final answer
   x = 24,761.94