Finding the Fourth Proportional to 8,401.83, 11,588.56 and 7,280.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,401.83 : 11,588.56 = 7,280.79 : x
2. Step 2: Convert to fraction form
   8,401.83/11,588.56 = 7,280.79/x
3. Step 3: Cross multiply
   8,401.83x = 11,588.56 × 7,280.79
4. Step 4: Simplify right side
   8,401.83x = 84,373,871.76
5. Step 5: Solve for x
   x = 84,373,871.76/8,401.83
6. Step 6: Final answer
   x = 10,042.32