Finding the Fourth Proportional to 31,033.84, 42,826.48 and 16,886.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,033.84 : 42,826.48 = 16,886.76 : x
2. Step 2: Convert to fraction form
   31,033.84/42,826.48 = 16,886.76/x
3. Step 3: Cross multiply
   31,033.84x = 42,826.48 × 16,886.76
4. Step 4: Simplify right side
   31,033.84x = 723,200,489.40
5. Step 5: Solve for x
   x = 723,200,489.40/31,033.84
6. Step 6: Final answer
   x = 23,303.61