Finding the Fourth Proportional to 31,033.22, 42,826.28 and 16,886.07

Step by Step Solution

1. Step 1: Write the proportion equation
   31,033.22 : 42,826.28 = 16,886.07 : x
2. Step 2: Convert to fraction form
   31,033.22/42,826.28 = 16,886.07/x
3. Step 3: Cross multiply
   31,033.22x = 42,826.28 × 16,886.07
4. Step 4: Simplify right side
   31,033.22x = 723,167,477.49
5. Step 5: Solve for x
   x = 723,167,477.49/31,033.22
6. Step 6: Final answer
   x = 23,303.02