Finding the Fourth Proportional to 73,111.10, 109,581.60 and 33,672.20

Step by Step Solution

1. Step 1: Write the proportion equation
   73,111.10 : 109,581.60 = 33,672.20 : x
2. Step 2: Convert to fraction form
   73,111.10/109,581.60 = 33,672.20/x
3. Step 3: Cross multiply
   73,111.10x = 109,581.60 × 33,672.20
4. Step 4: Simplify right side
   73,111.10x = 3,689,853,551.52
5. Step 5: Solve for x
   x = 3,689,853,551.52/73,111.10
6. Step 6: Final answer
   x = 50,469.13