Finding the Fourth Proportional to 31,287.18, 43,175.94 and 16,946.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,287.18 : 43,175.94 = 16,946.78 : x
2. Step 2: Convert to fraction form
   31,287.18/43,175.94 = 16,946.78/x
3. Step 3: Cross multiply
   31,287.18x = 43,175.94 × 16,946.78
4. Step 4: Simplify right side
   31,287.18x = 731,693,156.47
5. Step 5: Solve for x
   x = 731,693,156.47/31,287.18
6. Step 6: Final answer
   x = 23,386.36