Finding the Fourth Proportional to 12,103.92, 18,150.72 and 4,606.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.92 : 18,150.72 = 4,606.20 : x
2. Step 2: Convert to fraction form
   12,103.92/18,150.72 = 4,606.20/x
3. Step 3: Cross multiply
   12,103.92x = 18,150.72 × 4,606.20
4. Step 4: Simplify right side
   12,103.92x = 83,605,846.46
5. Step 5: Solve for x
   x = 83,605,846.46/12,103.92
6. Step 6: Final answer
   x = 6,907.34