Finding the Fourth Proportional to 30,551.50, 42,158.37 and 17,118.46

Step by Step Solution

1. Step 1: Write the proportion equation
   30,551.50 : 42,158.37 = 17,118.46 : x
2. Step 2: Convert to fraction form
   30,551.50/42,158.37 = 17,118.46/x
3. Step 3: Cross multiply
   30,551.50x = 42,158.37 × 17,118.46
4. Step 4: Simplify right side
   30,551.50x = 721,686,370.51
5. Step 5: Solve for x
   x = 721,686,370.51/30,551.50
6. Step 6: Final answer
   x = 23,621.96