Finding the Fourth Proportional to 8,410.27, 12,605.55 and 5,404.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,410.27 : 12,605.55 = 5,404.45 : x
2. Step 2: Convert to fraction form
   8,410.27/12,605.55 = 5,404.45/x
3. Step 3: Cross multiply
   8,410.27x = 12,605.55 × 5,404.45
4. Step 4: Simplify right side
   8,410.27x = 68,126,096.07
5. Step 5: Solve for x
   x = 68,126,096.07/8,410.27
6. Step 6: Final answer
   x = 8,100.35