Finding the Fourth Proportional to 109,447.20, 164,150.55 and 30,545.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,447.20 : 164,150.55 = 30,545.10 : x
2. Step 2: Convert to fraction form
   109,447.20/164,150.55 = 30,545.10/x
3. Step 3: Cross multiply
   109,447.20x = 164,150.55 × 30,545.10
4. Step 4: Simplify right side
   109,447.20x = 5,013,994,964.81
5. Step 5: Solve for x
   x = 5,013,994,964.81/109,447.20
6. Step 6: Final answer
   x = 45,812.00