Finding the Fourth Proportional to 31,080.14, 42,890.59 and 16,932.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,080.14 : 42,890.59 = 16,932.98 : x
2. Step 2: Convert to fraction form
   31,080.14/42,890.59 = 16,932.98/x
3. Step 3: Cross multiply
   31,080.14x = 42,890.59 × 16,932.98
4. Step 4: Simplify right side
   31,080.14x = 726,265,544.99
5. Step 5: Solve for x
   x = 726,265,544.99/31,080.14
6. Step 6: Final answer
   x = 23,367.52