Finding the Fourth Proportional to 31,033.82, 42,826.91 and 16,886.77

Step by Step Solution

1. Step 1: Write the proportion equation
   31,033.82 : 42,826.91 = 16,886.77 : x
2. Step 2: Convert to fraction form
   31,033.82/42,826.91 = 16,886.77/x
3. Step 3: Cross multiply
   31,033.82x = 42,826.91 × 16,886.77
4. Step 4: Simplify right side
   31,033.82x = 723,207,987.48
5. Step 5: Solve for x
   x = 723,207,987.48/31,033.82
6. Step 6: Final answer
   x = 23,303.86