Finding the Fourth Proportional to 9,180.85, 12,669.59 and 5,404.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,180.85 : 12,669.59 = 5,404.02 : x
2. Step 2: Convert to fraction form
   9,180.85/12,669.59 = 5,404.02/x
3. Step 3: Cross multiply
   9,180.85x = 12,669.59 × 5,404.02
4. Step 4: Simplify right side
   9,180.85x = 68,466,690.73
5. Step 5: Solve for x
   x = 68,466,690.73/9,180.85
6. Step 6: Final answer
   x = 7,457.56