Finding the Fourth Proportional to 9,923.30, 13,693.21 and 5,673.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,923.30 : 13,693.21 = 5,673.50 : x
2. Step 2: Convert to fraction form
   9,923.30/13,693.21 = 5,673.50/x
3. Step 3: Cross multiply
   9,923.30x = 13,693.21 × 5,673.50
4. Step 4: Simplify right side
   9,923.30x = 77,688,426.94
5. Step 5: Solve for x
   x = 77,688,426.94/9,923.30
6. Step 6: Final answer
   x = 7,828.89