Finding the Fourth Proportional to 12,321.52, 18,491.18 and 4,928.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,321.52 : 18,491.18 = 4,928.04 : x
2. Step 2: Convert to fraction form
   12,321.52/18,491.18 = 4,928.04/x
3. Step 3: Cross multiply
   12,321.52x = 18,491.18 × 4,928.04
4. Step 4: Simplify right side
   12,321.52x = 91,125,274.69
5. Step 5: Solve for x
   x = 91,125,274.69/12,321.52
6. Step 6: Final answer
   x = 7,395.62