Finding the Fourth Proportional to 7,321.58, 10,104.69 and 5,641.62

Step by Step Solution

1. Step 1: Write the proportion equation
   7,321.58 : 10,104.69 = 5,641.62 : x
2. Step 2: Convert to fraction form
   7,321.58/10,104.69 = 5,641.62/x
3. Step 3: Cross multiply
   7,321.58x = 10,104.69 × 5,641.62
4. Step 4: Simplify right side
   7,321.58x = 57,006,821.20
5. Step 5: Solve for x
   x = 57,006,821.20/7,321.58
6. Step 6: Final answer
   x = 7,786.14