Finding the Fourth Proportional to 31,040.32, 42,835.86 and 16,893.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,040.32 : 42,835.86 = 16,893.16 : x
2. Step 2: Convert to fraction form
   31,040.32/42,835.86 = 16,893.16/x
3. Step 3: Cross multiply
   31,040.32x = 42,835.86 × 16,893.16
4. Step 4: Simplify right side
   31,040.32x = 723,633,036.72
5. Step 5: Solve for x
   x = 723,633,036.72/31,040.32
6. Step 6: Final answer
   x = 23,312.68