Finding the Fourth Proportional to 31,391.37, 43,327.56 and 17,970.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,391.37 : 43,327.56 = 17,970.37 : x
2. Step 2: Convert to fraction form
   31,391.37/43,327.56 = 17,970.37/x
3. Step 3: Cross multiply
   31,391.37x = 43,327.56 × 17,970.37
4. Step 4: Simplify right side
   31,391.37x = 778,612,284.40
5. Step 5: Solve for x
   x = 778,612,284.40/31,391.37
6. Step 6: Final answer
   x = 24,803.39