Finding the Fourth Proportional to 31,368.06, 43,291.37 and 17,940.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,368.06 : 43,291.37 = 17,940.57 : x
2. Step 2: Convert to fraction form
   31,368.06/43,291.37 = 17,940.57/x
3. Step 3: Cross multiply
   31,368.06x = 43,291.37 × 17,940.57
4. Step 4: Simplify right side
   31,368.06x = 776,671,764.18
5. Step 5: Solve for x
   x = 776,671,764.18/31,368.06
6. Step 6: Final answer
   x = 24,759.96