Finding the Fourth Proportional to 10,355.51, 14,288.17 and 5,878.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,355.51 : 14,288.17 = 5,878.25 : x
2. Step 2: Convert to fraction form
   10,355.51/14,288.17 = 5,878.25/x
3. Step 3: Cross multiply
   10,355.51x = 14,288.17 × 5,878.25
4. Step 4: Simplify right side
   10,355.51x = 83,989,435.30
5. Step 5: Solve for x
   x = 83,989,435.30/10,355.51
6. Step 6: Final answer
   x = 8,110.60