Finding the Fourth Proportional to 33,238.35, 49,866.18 and 9,864.78

Step by Step Solution

1. Step 1: Write the proportion equation
   33,238.35 : 49,866.18 = 9,864.78 : x
2. Step 2: Convert to fraction form
   33,238.35/49,866.18 = 9,864.78/x
3. Step 3: Cross multiply
   33,238.35x = 49,866.18 × 9,864.78
4. Step 4: Simplify right side
   33,238.35x = 491,918,845.82
5. Step 5: Solve for x
   x = 491,918,845.82/33,238.35
6. Step 6: Final answer
   x = 14,799.74