Finding the Fourth Proportional to 30,839.86, 42,559.32 and 16,693

Step by Step Solution

1. Step 1: Write the proportion equation
   30,839.86 : 42,559.32 = 16,693 : x
2. Step 2: Convert to fraction form
   30,839.86/42,559.32 = 16,693/x
3. Step 3: Cross multiply
   30,839.86x = 42,559.32 × 16,693
4. Step 4: Simplify right side
   30,839.86x = 710,442,728.76
5. Step 5: Solve for x
   x = 710,442,728.76/30,839.86
6. Step 6: Final answer
   x = 23,036.51