Finding the Fourth Proportional to 55,441.83, 83,195.55 and 20,406.09

Step by Step Solution

1. Step 1: Write the proportion equation
   55,441.83 : 83,195.55 = 20,406.09 : x
2. Step 2: Convert to fraction form
   55,441.83/83,195.55 = 20,406.09/x
3. Step 3: Cross multiply
   55,441.83x = 83,195.55 × 20,406.09
4. Step 4: Simplify right side
   55,441.83x = 1,697,695,880.90
5. Step 5: Solve for x
   x = 1,697,695,880.90/55,441.83
6. Step 6: Final answer
   x = 30,621.21