Finding the Fourth Proportional to 9,886.10, 14,818.82 and 3,306.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886.10 : 14,818.82 = 3,306.87 : x
2. Step 2: Convert to fraction form
   9,886.10/14,818.82 = 3,306.87/x
3. Step 3: Cross multiply
   9,886.10x = 14,818.82 × 3,306.87
4. Step 4: Simplify right side
   9,886.10x = 49,003,894.76
5. Step 5: Solve for x
   x = 49,003,894.76/9,886.10
6. Step 6: Final answer
   x = 4,956.85