Finding the Fourth Proportional to 7,428.48, 10,248.81 and 5,304.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,428.48 : 10,248.81 = 5,304.42 : x
2. Step 2: Convert to fraction form
   7,428.48/10,248.81 = 5,304.42/x
3. Step 3: Cross multiply
   7,428.48x = 10,248.81 × 5,304.42
4. Step 4: Simplify right side
   7,428.48x = 54,363,992.74
5. Step 5: Solve for x
   x = 54,363,992.74/7,428.48
6. Step 6: Final answer
   x = 7,318.32