Finding the Fourth Proportional to 31,054.34, 42,853.83 and 16,906.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,054.34 : 42,853.83 = 16,906.82 : x
2. Step 2: Convert to fraction form
   31,054.34/42,853.83 = 16,906.82/x
3. Step 3: Cross multiply
   31,054.34x = 42,853.83 × 16,906.82
4. Step 4: Simplify right side
   31,054.34x = 724,521,990.12
5. Step 5: Solve for x
   x = 724,521,990.12/31,054.34
6. Step 6: Final answer
   x = 23,330.78