Finding the Fourth Proportional to 9,924.99, 13,697.45 and 5,676.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,924.99 : 13,697.45 = 5,676.40 : x
2. Step 2: Convert to fraction form
   9,924.99/13,697.45 = 5,676.40/x
3. Step 3: Cross multiply
   9,924.99x = 13,697.45 × 5,676.40
4. Step 4: Simplify right side
   9,924.99x = 77,752,285.66
5. Step 5: Solve for x
   x = 77,752,285.66/9,924.99
6. Step 6: Final answer
   x = 7,833.99