Finding the Fourth Proportional to 12,333.48, 18,500.12 and 4,939.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,333.48 : 18,500.12 = 4,939.64 : x
2. Step 2: Convert to fraction form
   12,333.48/18,500.12 = 4,939.64/x
3. Step 3: Cross multiply
   12,333.48x = 18,500.12 × 4,939.64
4. Step 4: Simplify right side
   12,333.48x = 91,383,932.76
5. Step 5: Solve for x
   x = 91,383,932.76/12,333.48
6. Step 6: Final answer
   x = 7,409.42