Finding the Fourth Proportional to 31,141.89, 42,975.41 and 16,994.49

Step by Step Solution

1. Step 1: Write the proportion equation
   31,141.89 : 42,975.41 = 16,994.49 : x
2. Step 2: Convert to fraction form
   31,141.89/42,975.41 = 16,994.49/x
3. Step 3: Cross multiply
   31,141.89x = 42,975.41 × 16,994.49
4. Step 4: Simplify right side
   31,141.89x = 730,345,090.52
5. Step 5: Solve for x
   x = 730,345,090.52/31,141.89
6. Step 6: Final answer
   x = 23,452.18