Finding the Fourth Proportional to 31,053, 42,853.42 and 16,906.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,053 : 42,853.42 = 16,906.08 : x
2. Step 2: Convert to fraction form
   31,053/42,853.42 = 16,906.08/x
3. Step 3: Cross multiply
   31,053x = 42,853.42 × 16,906.08
4. Step 4: Simplify right side
   31,053x = 724,483,346.79
5. Step 5: Solve for x
   x = 724,483,346.79/31,053
6. Step 6: Final answer
   x = 23,330.54