Finding the Fourth Proportional to 30,536.72, 42,143.23 and 16,928.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,536.72 : 42,143.23 = 16,928.09 : x
2. Step 2: Convert to fraction form
   30,536.72/42,143.23 = 16,928.09/x
3. Step 3: Cross multiply
   30,536.72x = 42,143.23 × 16,928.09
4. Step 4: Simplify right side
   30,536.72x = 713,404,533.81
5. Step 5: Solve for x
   x = 713,404,533.81/30,536.72
6. Step 6: Final answer
   x = 23,362.18