Finding the Fourth Proportional to 31,120.83, 42,947.04 and 16,973.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,120.83 : 42,947.04 = 16,973.68 : x
2. Step 2: Convert to fraction form
   31,120.83/42,947.04 = 16,973.68/x
3. Step 3: Cross multiply
   31,120.83x = 42,947.04 × 16,973.68
4. Step 4: Simplify right side
   31,120.83x = 728,969,313.91
5. Step 5: Solve for x
   x = 728,969,313.91/31,120.83
6. Step 6: Final answer
   x = 23,423.84