Finding the Fourth Proportional to 10,379.12, 14,323.15 and 5,663.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,379.12 : 14,323.15 = 5,663.39 : x
2. Step 2: Convert to fraction form
   10,379.12/14,323.15 = 5,663.39/x
3. Step 3: Cross multiply
   10,379.12x = 14,323.15 × 5,663.39
4. Step 4: Simplify right side
   10,379.12x = 81,117,606.13
5. Step 5: Solve for x
   x = 81,117,606.13/10,379.12
6. Step 6: Final answer
   x = 7,815.46