Finding the Fourth Proportional to 30,816.58, 42,526.84 and 16,669.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,816.58 : 42,526.84 = 16,669.42 : x
2. Step 2: Convert to fraction form
   30,816.58/42,526.84 = 16,669.42/x
3. Step 3: Cross multiply
   30,816.58x = 42,526.84 × 16,669.42
4. Step 4: Simplify right side
   30,816.58x = 708,897,757.23
5. Step 5: Solve for x
   x = 708,897,757.23/30,816.58
6. Step 6: Final answer
   x = 23,003.78