Finding the Fourth Proportional to 7,641.28, 10,548.48 and 5,404.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,641.28 : 10,548.48 = 5,404.96 : x
2. Step 2: Convert to fraction form
   7,641.28/10,548.48 = 5,404.96/x
3. Step 3: Cross multiply
   7,641.28x = 10,548.48 × 5,404.96
4. Step 4: Simplify right side
   7,641.28x = 57,014,112.46
5. Step 5: Solve for x
   x = 57,014,112.46/7,641.28
6. Step 6: Final answer
   x = 7,461.33