Finding the Fourth Proportional to 20,155.30, 30,229.56 and 5,364.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,155.30 : 30,229.56 = 5,364.42 : x
2. Step 2: Convert to fraction form
   20,155.30/30,229.56 = 5,364.42/x
3. Step 3: Cross multiply
   20,155.30x = 30,229.56 × 5,364.42
4. Step 4: Simplify right side
   20,155.30x = 162,164,056.26
5. Step 5: Solve for x
   x = 162,164,056.26/20,155.30
6. Step 6: Final answer
   x = 8,045.73