Finding the Fourth Proportional to 31,463.42, 43,419.50 and 17,316.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,463.42 : 43,419.50 = 17,316.28 : x
2. Step 2: Convert to fraction form
   31,463.42/43,419.50 = 17,316.28/x
3. Step 3: Cross multiply
   31,463.42x = 43,419.50 × 17,316.28
4. Step 4: Simplify right side
   31,463.42x = 751,863,915.78
5. Step 5: Solve for x
   x = 751,863,915.78/31,463.42
6. Step 6: Final answer
   x = 23,896.45