Finding the Fourth Proportional to 9,933.36, 14,901.84 and 4,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,933.36 : 14,901.84 = 4,086.72 : x
2. Step 2: Convert to fraction form
   9,933.36/14,901.84 = 4,086.72/x
3. Step 3: Cross multiply
   9,933.36x = 14,901.84 × 4,086.72
4. Step 4: Simplify right side
   9,933.36x = 60,899,647.56
5. Step 5: Solve for x
   x = 60,899,647.56/9,933.36
6. Step 6: Final answer
   x = 6,130.82