Finding the Fourth Proportional to 30,932.15, 42,686.19 and 16,784.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,932.15 : 42,686.19 = 16,784.96 : x
2. Step 2: Convert to fraction form
   30,932.15/42,686.19 = 16,784.96/x
3. Step 3: Cross multiply
   30,932.15x = 42,686.19 × 16,784.96
4. Step 4: Simplify right side
   30,932.15x = 716,485,778.27
5. Step 5: Solve for x
   x = 716,485,778.27/30,932.15
6. Step 6: Final answer
   x = 23,163.15