Finding the Fourth Proportional to 10,813.88, 16,211.06 and 3,886.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,813.88 : 16,211.06 = 3,886.76 : x
2. Step 2: Convert to fraction form
   10,813.88/16,211.06 = 3,886.76/x
3. Step 3: Cross multiply
   10,813.88x = 16,211.06 × 3,886.76
4. Step 4: Simplify right side
   10,813.88x = 63,008,499.57
5. Step 5: Solve for x
   x = 63,008,499.57/10,813.88
6. Step 6: Final answer
   x = 5,826.63