Finding the Fourth Proportional to 10,379.89, 14,323.87 and 5,664.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,379.89 : 14,323.87 = 5,664.07 : x
2. Step 2: Convert to fraction form
   10,379.89/14,323.87 = 5,664.07/x
3. Step 3: Cross multiply
   10,379.89x = 14,323.87 × 5,664.07
4. Step 4: Simplify right side
   10,379.89x = 81,131,402.35
5. Step 5: Solve for x
   x = 81,131,402.35/10,379.89
6. Step 6: Final answer
   x = 7,816.21