Finding the Fourth Proportional to 31,114.76, 42,938.82 and 16,968.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,114.76 : 42,938.82 = 16,968.38 : x
2. Step 2: Convert to fraction form
   31,114.76/42,938.82 = 16,968.38/x
3. Step 3: Cross multiply
   31,114.76x = 42,938.82 × 16,968.38
4. Step 4: Simplify right side
   31,114.76x = 728,602,214.51
5. Step 5: Solve for x
   x = 728,602,214.51/31,114.76
6. Step 6: Final answer
   x = 23,416.61