Finding the Fourth Proportional to 9,181.73, 12,670.49 and 5,404.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,181.73 : 12,670.49 = 5,404.02 : x
2. Step 2: Convert to fraction form
   9,181.73/12,670.49 = 5,404.02/x
3. Step 3: Cross multiply
   9,181.73x = 12,670.49 × 5,404.02
4. Step 4: Simplify right side
   9,181.73x = 68,471,581.37
5. Step 5: Solve for x
   x = 68,471,581.37/9,181.73
6. Step 6: Final answer
   x = 7,457.37