Finding the Fourth Proportional to 31,053.52, 42,853.86 and 16,906.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,053.52 : 42,853.86 = 16,906.37 : x
2. Step 2: Convert to fraction form
   31,053.52/42,853.86 = 16,906.37/x
3. Step 3: Cross multiply
   31,053.52x = 42,853.86 × 16,906.37
4. Step 4: Simplify right side
   31,053.52x = 724,502,998.82
5. Step 5: Solve for x
   x = 724,502,998.82/31,053.52
6. Step 6: Final answer
   x = 23,330.78