Finding the Fourth Proportional to 20,155.42, 30,235.56 and 5,364.62

Step by Step Solution

1. Step 1: Write the proportion equation
   20,155.42 : 30,235.56 = 5,364.62 : x
2. Step 2: Convert to fraction form
   20,155.42/30,235.56 = 5,364.62/x
3. Step 3: Cross multiply
   20,155.42x = 30,235.56 × 5,364.62
4. Step 4: Simplify right side
   20,155.42x = 162,202,289.89
5. Step 5: Solve for x
   x = 162,202,289.89/20,155.42
6. Step 6: Final answer
   x = 8,047.58