Finding the Fourth Proportional to 10,355.45, 14,291.72 and 5,878.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,355.45 : 14,291.72 = 5,878.79 : x
2. Step 2: Convert to fraction form
   10,355.45/14,291.72 = 5,878.79/x
3. Step 3: Cross multiply
   10,355.45x = 14,291.72 × 5,878.79
4. Step 4: Simplify right side
   10,355.45x = 84,018,020.62
5. Step 5: Solve for x
   x = 84,018,020.62/10,355.45
6. Step 6: Final answer
   x = 8,113.41