Finding the Fourth Proportional to 31,141.71, 42,975.54 and 16,994.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,141.71 : 42,975.54 = 16,994.52 : x
2. Step 2: Convert to fraction form
   31,141.71/42,975.54 = 16,994.52/x
3. Step 3: Cross multiply
   31,141.71x = 42,975.54 × 16,994.52
4. Step 4: Simplify right side
   31,141.71x = 730,348,674.04
5. Step 5: Solve for x
   x = 730,348,674.04/31,141.71
6. Step 6: Final answer
   x = 23,452.43