Finding the Fourth Proportional to 9,821.51, 13,544.38 and 7,579.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,821.51 : 13,544.38 = 7,579.83 : x
2. Step 2: Convert to fraction form
   9,821.51/13,544.38 = 7,579.83/x
3. Step 3: Cross multiply
   9,821.51x = 13,544.38 × 7,579.83
4. Step 4: Simplify right side
   9,821.51x = 102,664,097.86
5. Step 5: Solve for x
   x = 102,664,097.86/9,821.51
6. Step 6: Final answer
   x = 10,452.99