Finding the Fourth Proportional to 73,401.15, 110,105.91 and 20,806.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,401.15 : 110,105.91 = 20,806.50 : x
2. Step 2: Convert to fraction form
   73,401.15/110,105.91 = 20,806.50/x
3. Step 3: Cross multiply
   73,401.15x = 110,105.91 × 20,806.50
4. Step 4: Simplify right side
   73,401.15x = 2,290,918,616.42
5. Step 5: Solve for x
   x = 2,290,918,616.42/73,401.15
6. Step 6: Final answer
   x = 31,210.94