Finding the Fourth Proportional to 31,016.24, 42,801.60 and 18,097.99

Step by Step Solution

1. Step 1: Write the proportion equation
   31,016.24 : 42,801.60 = 18,097.99 : x
2. Step 2: Convert to fraction form
   31,016.24/42,801.60 = 18,097.99/x
3. Step 3: Cross multiply
   31,016.24x = 42,801.60 × 18,097.99
4. Step 4: Simplify right side
   31,016.24x = 774,622,928.78
5. Step 5: Solve for x
   x = 774,622,928.78/31,016.24
6. Step 6: Final answer
   x = 24,974.75