Finding the Fourth Proportional to 12,262.78, 18,387.69 and 5,333.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,262.78 : 18,387.69 = 5,333.50 : x
2. Step 2: Convert to fraction form
   12,262.78/18,387.69 = 5,333.50/x
3. Step 3: Cross multiply
   12,262.78x = 18,387.69 × 5,333.50
4. Step 4: Simplify right side
   12,262.78x = 98,070,744.62
5. Step 5: Solve for x
   x = 98,070,744.62/12,262.78
6. Step 6: Final answer
   x = 7,997.43