Finding the Fourth Proportional to 31,420.69, 43,361.37 and 17,081.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,420.69 : 43,361.37 = 17,081.48 : x
2. Step 2: Convert to fraction form
   31,420.69/43,361.37 = 17,081.48/x
3. Step 3: Cross multiply
   31,420.69x = 43,361.37 × 17,081.48
4. Step 4: Simplify right side
   31,420.69x = 740,676,482.83
5. Step 5: Solve for x
   x = 740,676,482.83/31,420.69
6. Step 6: Final answer
   x = 23,572.89