Finding the Fourth Proportional to 9,786.83, 14,679.63 and 3,123.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.83 : 14,679.63 = 3,123.16 : x
2. Step 2: Convert to fraction form
   9,786.83/14,679.63 = 3,123.16/x
3. Step 3: Cross multiply
   9,786.83x = 14,679.63 × 3,123.16
4. Step 4: Simplify right side
   9,786.83x = 45,846,796.53
5. Step 5: Solve for x
   x = 45,846,796.53/9,786.83
6. Step 6: Final answer
   x = 4,684.54