Finding the Fourth Proportional to 30,854.88, 42,579.94 and 16,707.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,854.88 : 42,579.94 = 16,707.72 : x
2. Step 2: Convert to fraction form
   30,854.88/42,579.94 = 16,707.72/x
3. Step 3: Cross multiply
   30,854.88x = 42,579.94 × 16,707.72
4. Step 4: Simplify right side
   30,854.88x = 711,413,673.37
5. Step 5: Solve for x
   x = 711,413,673.37/30,854.88
6. Step 6: Final answer
   x = 23,056.76