Finding the Fourth Proportional to 31,048.20, 42,846.72 and 16,901.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,048.20 : 42,846.72 = 16,901.22 : x
2. Step 2: Convert to fraction form
   31,048.20/42,846.72 = 16,901.22/x
3. Step 3: Cross multiply
   31,048.20x = 42,846.72 × 16,901.22
4. Step 4: Simplify right side
   31,048.20x = 724,161,841.00
5. Step 5: Solve for x
   x = 724,161,841.00/31,048.20
6. Step 6: Final answer
   x = 23,323.79