Finding the Fourth Proportional to 31,080.51, 42,889.91 and 16,933.46

Step by Step Solution

1. Step 1: Write the proportion equation
   31,080.51 : 42,889.91 = 16,933.46 : x
2. Step 2: Convert to fraction form
   31,080.51/42,889.91 = 16,933.46/x
3. Step 3: Cross multiply
   31,080.51x = 42,889.91 × 16,933.46
4. Step 4: Simplify right side
   31,080.51x = 726,274,276.27
5. Step 5: Solve for x
   x = 726,274,276.27/31,080.51
6. Step 6: Final answer
   x = 23,367.51