Finding the Fourth Proportional to 7,151.44, 9,873.72 and 5,481.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,151.44 : 9,873.72 = 5,481.57 : x
2. Step 2: Convert to fraction form
   7,151.44/9,873.72 = 5,481.57/x
3. Step 3: Cross multiply
   7,151.44x = 9,873.72 × 5,481.57
4. Step 4: Simplify right side
   7,151.44x = 54,123,487.34
5. Step 5: Solve for x
   x = 54,123,487.34/7,151.44
6. Step 6: Final answer
   x = 7,568.19