Finding the Fourth Proportional to 10,870.89, 16,285.59 and 5,860.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,870.89 : 16,285.59 = 5,860.83 : x
2. Step 2: Convert to fraction form
   10,870.89/16,285.59 = 5,860.83/x
3. Step 3: Cross multiply
   10,870.89x = 16,285.59 × 5,860.83
4. Step 4: Simplify right side
   10,870.89x = 95,447,135.51
5. Step 5: Solve for x
   x = 95,447,135.51/10,870.89
6. Step 6: Final answer
   x = 8,780.07