Finding the Fourth Proportional to 30,505.69, 42,095.79 and 16,892.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,505.69 : 42,095.79 = 16,892.75 : x
2. Step 2: Convert to fraction form
   30,505.69/42,095.79 = 16,892.75/x
3. Step 3: Cross multiply
   30,505.69x = 42,095.79 × 16,892.75
4. Step 4: Simplify right side
   30,505.69x = 711,113,761.76
5. Step 5: Solve for x
   x = 711,113,761.76/30,505.69
6. Step 6: Final answer
   x = 23,310.86