Finding the Fourth Proportional to 31,054.42, 42,853.95 and 16,906.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,054.42 : 42,853.95 = 16,906.98 : x
2. Step 2: Convert to fraction form
   31,054.42/42,853.95 = 16,906.98/x
3. Step 3: Cross multiply
   31,054.42x = 42,853.95 × 16,906.98
4. Step 4: Simplify right side
   31,054.42x = 724,530,875.57
5. Step 5: Solve for x
   x = 724,530,875.57/31,054.42
6. Step 6: Final answer
   x = 23,331.01