Finding the Fourth Proportional to 30,816.50, 42,526.72 and 16,669.34

Step by Step Solution

1. Step 1: Write the proportion equation
   30,816.50 : 42,526.72 = 16,669.34 : x
2. Step 2: Convert to fraction form
   30,816.50/42,526.72 = 16,669.34/x
3. Step 3: Cross multiply
   30,816.50x = 42,526.72 × 16,669.34
4. Step 4: Simplify right side
   30,816.50x = 708,892,354.76
5. Step 5: Solve for x
   x = 708,892,354.76/30,816.50
6. Step 6: Final answer
   x = 23,003.66