Finding the Fourth Proportional to 8,732.48, 12,053.41 and 5,380.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,732.48 : 12,053.41 = 5,380.09 : x
2. Step 2: Convert to fraction form
   8,732.48/12,053.41 = 5,380.09/x
3. Step 3: Cross multiply
   8,732.48x = 12,053.41 × 5,380.09
4. Step 4: Simplify right side
   8,732.48x = 64,848,387.02
5. Step 5: Solve for x
   x = 64,848,387.02/8,732.48
6. Step 6: Final answer
   x = 7,426.12