Finding the Fourth Proportional to 12,933.21, 19,383.57 and 5,528.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,933.21 : 19,383.57 = 5,528.96 : x
2. Step 2: Convert to fraction form
   12,933.21/19,383.57 = 5,528.96/x
3. Step 3: Cross multiply
   12,933.21x = 19,383.57 × 5,528.96
4. Step 4: Simplify right side
   12,933.21x = 107,171,045.47
5. Step 5: Solve for x
   x = 107,171,045.47/12,933.21
6. Step 6: Final answer
   x = 8,286.50