Finding the Fourth Proportional to 12,150.21, 18,222.04 and 5,130.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.21 : 18,222.04 = 5,130.27 : x
2. Step 2: Convert to fraction form
   12,150.21/18,222.04 = 5,130.27/x
3. Step 3: Cross multiply
   12,150.21x = 18,222.04 × 5,130.27
4. Step 4: Simplify right side
   12,150.21x = 93,483,868.39
5. Step 5: Solve for x
   x = 93,483,868.39/12,150.21
6. Step 6: Final answer
   x = 7,694.02