Finding the Fourth Proportional to 31,513.59, 43,488.19 and 17,173.55

Step by Step Solution

1. Step 1: Write the proportion equation
   31,513.59 : 43,488.19 = 17,173.55 : x
2. Step 2: Convert to fraction form
   31,513.59/43,488.19 = 17,173.55/x
3. Step 3: Cross multiply
   31,513.59x = 43,488.19 × 17,173.55
4. Step 4: Simplify right side
   31,513.59x = 746,846,345.00
5. Step 5: Solve for x
   x = 746,846,345.00/31,513.59
6. Step 6: Final answer
   x = 23,699.18