Finding the Fourth Proportional to 30,833.47, 42,550.31 and 16,686.31

Step by Step Solution

1. Step 1: Write the proportion equation
   30,833.47 : 42,550.31 = 16,686.31 : x
2. Step 2: Convert to fraction form
   30,833.47/42,550.31 = 16,686.31/x
3. Step 3: Cross multiply
   30,833.47x = 42,550.31 × 16,686.31
4. Step 4: Simplify right side
   30,833.47x = 710,007,663.26
5. Step 5: Solve for x
   x = 710,007,663.26/30,833.47
6. Step 6: Final answer
   x = 23,027.17