Finding the Fourth Proportional to 31,215.57, 43,074.51 and 17,786.49

Step by Step Solution

1. Step 1: Write the proportion equation
   31,215.57 : 43,074.51 = 17,786.49 : x
2. Step 2: Convert to fraction form
   31,215.57/43,074.51 = 17,786.49/x
3. Step 3: Cross multiply
   31,215.57x = 43,074.51 × 17,786.49
4. Step 4: Simplify right side
   31,215.57x = 766,144,341.37
5. Step 5: Solve for x
   x = 766,144,341.37/31,215.57
6. Step 6: Final answer
   x = 24,543.66