Finding the Fourth Proportional to 10,923.72, 16,390.98 and 5,073.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,923.72 : 16,390.98 = 5,073.36 : x
2. Step 2: Convert to fraction form
   10,923.72/16,390.98 = 5,073.36/x
3. Step 3: Cross multiply
   10,923.72x = 16,390.98 × 5,073.36
4. Step 4: Simplify right side
   10,923.72x = 83,157,342.29
5. Step 5: Solve for x
   x = 83,157,342.29/10,923.72
6. Step 6: Final answer
   x = 7,612.55