Finding the Fourth Proportional to 73,078.16, 109,628.72 and 30,958.36

Step by Step Solution

1. Step 1: Write the proportion equation
   73,078.16 : 109,628.72 = 30,958.36 : x
2. Step 2: Convert to fraction form
   73,078.16/109,628.72 = 30,958.36/x
3. Step 3: Cross multiply
   73,078.16x = 109,628.72 × 30,958.36
4. Step 4: Simplify right side
   73,078.16x = 3,393,925,380.10
5. Step 5: Solve for x
   x = 3,393,925,380.10/73,078.16
6. Step 6: Final answer
   x = 46,442.40