Finding the Fourth Proportional to 31,205.12, 43,063.06 and 17,057.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,205.12 : 43,063.06 = 17,057.96 : x
2. Step 2: Convert to fraction form
   31,205.12/43,063.06 = 17,057.96/x
3. Step 3: Cross multiply
   31,205.12x = 43,063.06 × 17,057.96
4. Step 4: Simplify right side
   31,205.12x = 734,567,997.60
5. Step 5: Solve for x
   x = 734,567,997.60/31,205.12
6. Step 6: Final answer
   x = 23,539.98