Finding the Fourth Proportional to 10,469.10, 15,690.45 and 5,540.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,469.10 : 15,690.45 = 5,540.94 : x
2. Step 2: Convert to fraction form
   10,469.10/15,690.45 = 5,540.94/x
3. Step 3: Cross multiply
   10,469.10x = 15,690.45 × 5,540.94
4. Step 4: Simplify right side
   10,469.10x = 86,939,842.02
5. Step 5: Solve for x
   x = 86,939,842.02/10,469.10
6. Step 6: Final answer
   x = 8,304.42