Finding the Fourth Proportional to 31,287.05, 43,179.75 and 17,860.23

Step by Step Solution

1. Step 1: Write the proportion equation
   31,287.05 : 43,179.75 = 17,860.23 : x
2. Step 2: Convert to fraction form
   31,287.05/43,179.75 = 17,860.23/x
3. Step 3: Cross multiply
   31,287.05x = 43,179.75 × 17,860.23
4. Step 4: Simplify right side
   31,287.05x = 771,200,266.34
5. Step 5: Solve for x
   x = 771,200,266.34/31,287.05
6. Step 6: Final answer
   x = 24,649.18