Finding the Fourth Proportional to 10,890.83, 16,337.25 and 3,870.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.83 : 16,337.25 = 3,870.15 : x
2. Step 2: Convert to fraction form
   10,890.83/16,337.25 = 3,870.15/x
3. Step 3: Cross multiply
   10,890.83x = 16,337.25 × 3,870.15
4. Step 4: Simplify right side
   10,890.83x = 63,227,608.09
5. Step 5: Solve for x
   x = 63,227,608.09/10,890.83
6. Step 6: Final answer
   x = 5,805.58