Finding the Fourth Proportional to 9,783.28, 13,491.77 and 7,541.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,783.28 : 13,491.77 = 7,541.61 : x
2. Step 2: Convert to fraction form
   9,783.28/13,491.77 = 7,541.61/x
3. Step 3: Cross multiply
   9,783.28x = 13,491.77 × 7,541.61
4. Step 4: Simplify right side
   9,783.28x = 101,749,579.25
5. Step 5: Solve for x
   x = 101,749,579.25/9,783.28
6. Step 6: Final answer
   x = 10,400.35