Finding the Fourth Proportional to 31,048.25, 42,846.59 and 16,901.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,048.25 : 42,846.59 = 16,901.20 : x
2. Step 2: Convert to fraction form
   31,048.25/42,846.59 = 16,901.20/x
3. Step 3: Cross multiply
   31,048.25x = 42,846.59 × 16,901.20
4. Step 4: Simplify right side
   31,048.25x = 724,158,786.91
5. Step 5: Solve for x
   x = 724,158,786.91/31,048.25
6. Step 6: Final answer
   x = 23,323.66