Finding the Fourth Proportional to 30,902.92, 42,645.89 and 16,755.76

Step by Step Solution

1. Step 1: Write the proportion equation
   30,902.92 : 42,645.89 = 16,755.76 : x
2. Step 2: Convert to fraction form
   30,902.92/42,645.89 = 16,755.76/x
3. Step 3: Cross multiply
   30,902.92x = 42,645.89 × 16,755.76
4. Step 4: Simplify right side
   30,902.92x = 714,564,393.02
5. Step 5: Solve for x
   x = 714,564,393.02/30,902.92
6. Step 6: Final answer
   x = 23,122.88