Finding the Fourth Proportional to 5,590.28, 8,418.86 and 5,092.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,590.28 : 8,418.86 = 5,092.05 : x
2. Step 2: Convert to fraction form
   5,590.28/8,418.86 = 5,092.05/x
3. Step 3: Cross multiply
   5,590.28x = 8,418.86 × 5,092.05
4. Step 4: Simplify right side
   5,590.28x = 42,869,230.60
5. Step 5: Solve for x
   x = 42,869,230.60/5,590.28
6. Step 6: Final answer
   x = 7,668.54