Finding the Fourth Proportional to 7,443.76, 10,272 and 5,086.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.76 : 10,272 = 5,086.48 : x
2. Step 2: Convert to fraction form
   7,443.76/10,272 = 5,086.48/x
3. Step 3: Cross multiply
   7,443.76x = 10,272 × 5,086.48
4. Step 4: Simplify right side
   7,443.76x = 52,248,322.56
5. Step 5: Solve for x
   x = 52,248,322.56/7,443.76
6. Step 6: Final answer
   x = 7,019.08