Finding the Fourth Proportional to 9,320.97, 12,858.69 and 5,541.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,320.97 : 12,858.69 = 5,541.99 : x
2. Step 2: Convert to fraction form
   9,320.97/12,858.69 = 5,541.99/x
3. Step 3: Cross multiply
   9,320.97x = 12,858.69 × 5,541.99
4. Step 4: Simplify right side
   9,320.97x = 71,262,731.39
5. Step 5: Solve for x
   x = 71,262,731.39/9,320.97
6. Step 6: Final answer
   x = 7,645.42