Finding the Fourth Proportional to 20,558.01, 30,850.69 and 8,076.52

Step by Step Solution

1. Step 1: Write the proportion equation
   20,558.01 : 30,850.69 = 8,076.52 : x
2. Step 2: Convert to fraction form
   20,558.01/30,850.69 = 8,076.52/x
3. Step 3: Cross multiply
   20,558.01x = 30,850.69 × 8,076.52
4. Step 4: Simplify right side
   20,558.01x = 249,166,214.80
5. Step 5: Solve for x
   x = 249,166,214.80/20,558.01
6. Step 6: Final answer
   x = 12,120.15