Finding the Fourth Proportional to 30,932.88, 42,687.59 and 16,785.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,932.88 : 42,687.59 = 16,785.96 : x
2. Step 2: Convert to fraction form
   30,932.88/42,687.59 = 16,785.96/x
3. Step 3: Cross multiply
   30,932.88x = 42,687.59 × 16,785.96
4. Step 4: Simplify right side
   30,932.88x = 716,552,094.31
5. Step 5: Solve for x
   x = 716,552,094.31/30,932.88
6. Step 6: Final answer
   x = 23,164.74