Finding the Fourth Proportional to 30,885.94, 42,622.50 and 16,738.78

Step by Step Solution

1. Step 1: Write the proportion equation
   30,885.94 : 42,622.50 = 16,738.78 : x
2. Step 2: Convert to fraction form
   30,885.94/42,622.50 = 16,738.78/x
3. Step 3: Cross multiply
   30,885.94x = 42,622.50 × 16,738.78
4. Step 4: Simplify right side
   30,885.94x = 713,448,650.55
5. Step 5: Solve for x
   x = 713,448,650.55/30,885.94
6. Step 6: Final answer
   x = 23,099.46