Finding the Fourth Proportional to 30,835.13, 42,552.79 and 16,688.27

Step by Step Solution

1. Step 1: Write the proportion equation
   30,835.13 : 42,552.79 = 16,688.27 : x
2. Step 2: Convert to fraction form
   30,835.13/42,552.79 = 16,688.27/x
3. Step 3: Cross multiply
   30,835.13x = 42,552.79 × 16,688.27
4. Step 4: Simplify right side
   30,835.13x = 710,132,513.43
5. Step 5: Solve for x
   x = 710,132,513.43/30,835.13
6. Step 6: Final answer
   x = 23,029.99