Finding the Fourth Proportional to 10,781.94, 14,878.28 and 6,065.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,781.94 : 14,878.28 = 6,065.31 : x
2. Step 2: Convert to fraction form
   10,781.94/14,878.28 = 6,065.31/x
3. Step 3: Cross multiply
   10,781.94x = 14,878.28 × 6,065.31
4. Step 4: Simplify right side
   10,781.94x = 90,241,380.47
5. Step 5: Solve for x
   x = 90,241,380.47/10,781.94
6. Step 6: Final answer
   x = 8,369.68