Finding the Fourth Proportional to 9,861.89, 14,793.53 and 3,106.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,861.89 : 14,793.53 = 3,106.89 : x
2. Step 2: Convert to fraction form
   9,861.89/14,793.53 = 3,106.89/x
3. Step 3: Cross multiply
   9,861.89x = 14,793.53 × 3,106.89
4. Step 4: Simplify right side
   9,861.89x = 45,961,854.89
5. Step 5: Solve for x
   x = 45,961,854.89/9,861.89
6. Step 6: Final answer
   x = 4,660.55