Finding the Fourth Proportional to 31,228.72, 43,095.63 and 17,081.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,228.72 : 43,095.63 = 17,081.53 : x
2. Step 2: Convert to fraction form
   31,228.72/43,095.63 = 17,081.53/x
3. Step 3: Cross multiply
   31,228.72x = 43,095.63 × 17,081.53
4. Step 4: Simplify right side
   31,228.72x = 736,139,296.71
5. Step 5: Solve for x
   x = 736,139,296.71/31,228.72
6. Step 6: Final answer
   x = 23,572.51