Finding the Fourth Proportional to 12,144.30, 18,222.12 and 4,746.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,144.30 : 18,222.12 = 4,746.84 : x
2. Step 2: Convert to fraction form
   12,144.30/18,222.12 = 4,746.84/x
3. Step 3: Cross multiply
   12,144.30x = 18,222.12 × 4,746.84
4. Step 4: Simplify right side
   12,144.30x = 86,497,488.10
5. Step 5: Solve for x
   x = 86,497,488.10/12,144.30
6. Step 6: Final answer
   x = 7,122.48