Finding the Fourth Proportional to 31,710.80, 43,761.42 and 17,370.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,710.80 : 43,761.42 = 17,370.42 : x
2. Step 2: Convert to fraction form
   31,710.80/43,761.42 = 17,370.42/x
3. Step 3: Cross multiply
   31,710.80x = 43,761.42 × 17,370.42
4. Step 4: Simplify right side
   31,710.80x = 760,154,245.20
5. Step 5: Solve for x
   x = 760,154,245.20/31,710.80
6. Step 6: Final answer
   x = 23,971.47