Finding the Fourth Proportional to 10,379.78, 14,323.53 and 5,902.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,379.78 : 14,323.53 = 5,902.91 : x
2. Step 2: Convert to fraction form
   10,379.78/14,323.53 = 5,902.91/x
3. Step 3: Cross multiply
   10,379.78x = 14,323.53 × 5,902.91
4. Step 4: Simplify right side
   10,379.78x = 84,550,508.47
5. Step 5: Solve for x
   x = 84,550,508.47/10,379.78
6. Step 6: Final answer
   x = 8,145.69