Finding the Fourth Proportional to 31,228.80, 43,095 and 17,080.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,228.80 : 43,095 = 17,080.72 : x
2. Step 2: Convert to fraction form
   31,228.80/43,095 = 17,080.72/x
3. Step 3: Cross multiply
   31,228.80x = 43,095 × 17,080.72
4. Step 4: Simplify right side
   31,228.80x = 736,093,628.40
5. Step 5: Solve for x
   x = 736,093,628.40/31,228.80
6. Step 6: Final answer
   x = 23,570.99