Finding the Fourth Proportional to 8,404.56, 11,595.96 and 5,420.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,404.56 : 11,595.96 = 5,420.52 : x
2. Step 2: Convert to fraction form
   8,404.56/11,595.96 = 5,420.52/x
3. Step 3: Cross multiply
   8,404.56x = 11,595.96 × 5,420.52
4. Step 4: Simplify right side
   8,404.56x = 62,856,133.10
5. Step 5: Solve for x
   x = 62,856,133.10/8,404.56
6. Step 6: Final answer
   x = 7,478.81