Finding the Fourth Proportional to 7,336.54, 10,990.73 and 5,858.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,336.54 : 10,990.73 = 5,858.69 : x
2. Step 2: Convert to fraction form
   7,336.54/10,990.73 = 5,858.69/x
3. Step 3: Cross multiply
   7,336.54x = 10,990.73 × 5,858.69
4. Step 4: Simplify right side
   7,336.54x = 64,391,279.94
5. Step 5: Solve for x
   x = 64,391,279.94/7,336.54
6. Step 6: Final answer
   x = 8,776.79