Finding the Fourth Proportional to 31,369.68, 43,288.56 and 17,940.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,369.68 : 43,288.56 = 17,940.24 : x
2. Step 2: Convert to fraction form
   31,369.68/43,288.56 = 17,940.24/x
3. Step 3: Cross multiply
   31,369.68x = 43,288.56 × 17,940.24
4. Step 4: Simplify right side
   31,369.68x = 776,607,155.65
5. Step 5: Solve for x
   x = 776,607,155.65/31,369.68
6. Step 6: Final answer
   x = 24,756.62