Finding the Fourth Proportional to 109,399.20, 164,078.55 and 30,497.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,399.20 : 164,078.55 = 30,497.10 : x
2. Step 2: Convert to fraction form
   109,399.20/164,078.55 = 30,497.10/x
3. Step 3: Cross multiply
   109,399.20x = 164,078.55 × 30,497.10
4. Step 4: Simplify right side
   109,399.20x = 5,003,919,947.21
5. Step 5: Solve for x
   x = 5,003,919,947.21/109,399.20
6. Step 6: Final answer
   x = 45,740.00