Finding the Fourth Proportional to 31,033.56, 42,826.42 and 16,886.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,033.56 : 42,826.42 = 16,886.42 : x
2. Step 2: Convert to fraction form
   31,033.56/42,826.42 = 16,886.42/x
3. Step 3: Cross multiply
   31,033.56x = 42,826.42 × 16,886.42
4. Step 4: Simplify right side
   31,033.56x = 723,184,915.22
5. Step 5: Solve for x
   x = 723,184,915.22/31,033.56
6. Step 6: Final answer
   x = 23,303.32