Finding the Fourth Proportional to 30,932.18, 42,686.52 and 16,785.03

Step by Step Solution

1. Step 1: Write the proportion equation
   30,932.18 : 42,686.52 = 16,785.03 : x
2. Step 2: Convert to fraction form
   30,932.18/42,686.52 = 16,785.03/x
3. Step 3: Cross multiply
   30,932.18x = 42,686.52 × 16,785.03
4. Step 4: Simplify right side
   30,932.18x = 716,494,347.33
5. Step 5: Solve for x
   x = 716,494,347.33/30,932.18
6. Step 6: Final answer
   x = 23,163.40