Finding the Fourth Proportional to 30,885.55, 42,620.91 and 16,738.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,885.55 : 42,620.91 = 16,738.09 : x
2. Step 2: Convert to fraction form
   30,885.55/42,620.91 = 16,738.09/x
3. Step 3: Cross multiply
   30,885.55x = 42,620.91 × 16,738.09
4. Step 4: Simplify right side
   30,885.55x = 713,392,414.36
5. Step 5: Solve for x
   x = 713,392,414.36/30,885.55
6. Step 6: Final answer
   x = 23,097.94