Finding the Fourth Proportional to 9,786.23, 14,681.79 and 2,860.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.23 : 14,681.79 = 2,860.73 : x
2. Step 2: Convert to fraction form
   9,786.23/14,681.79 = 2,860.73/x
3. Step 3: Cross multiply
   9,786.23x = 14,681.79 × 2,860.73
4. Step 4: Simplify right side
   9,786.23x = 42,000,701.34
5. Step 5: Solve for x
   x = 42,000,701.34/9,786.23
6. Step 6: Final answer
   x = 4,291.81