Finding the Fourth Proportional to 31,590.72, 43,595.64 and 17,443.80

Step by Step Solution

1. Step 1: Write the proportion equation
   31,590.72 : 43,595.64 = 17,443.80 : x
2. Step 2: Convert to fraction form
   31,590.72/43,595.64 = 17,443.80/x
3. Step 3: Cross multiply
   31,590.72x = 43,595.64 × 17,443.80
4. Step 4: Simplify right side
   31,590.72x = 760,473,625.03
5. Step 5: Solve for x
   x = 760,473,625.03/31,590.72
6. Step 6: Final answer
   x = 24,072.69