Finding the Fourth Proportional to 30,885.57, 42,622.20 and 16,738.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,885.57 : 42,622.20 = 16,738.38 : x
2. Step 2: Convert to fraction form
   30,885.57/42,622.20 = 16,738.38/x
3. Step 3: Cross multiply
   30,885.57x = 42,622.20 × 16,738.38
4. Step 4: Simplify right side
   30,885.57x = 713,426,580.04
5. Step 5: Solve for x
   x = 713,426,580.04/30,885.57
6. Step 6: Final answer
   x = 23,099.03