Finding the Fourth Proportional to 31,367.53, 43,274.86 and 17,931.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,367.53 : 43,274.86 = 17,931.57 : x
2. Step 2: Convert to fraction form
   31,367.53/43,274.86 = 17,931.57/x
3. Step 3: Cross multiply
   31,367.53x = 43,274.86 × 17,931.57
4. Step 4: Simplify right side
   31,367.53x = 775,986,181.33
5. Step 5: Solve for x
   x = 775,986,181.33/31,367.53
6. Step 6: Final answer
   x = 24,738.52