Finding the Fourth Proportional to 9,789.04, 14,685.18 and 3,945.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.04 : 14,685.18 = 3,945.16 : x
2. Step 2: Convert to fraction form
   9,789.04/14,685.18 = 3,945.16/x
3. Step 3: Cross multiply
   9,789.04x = 14,685.18 × 3,945.16
4. Step 4: Simplify right side
   9,789.04x = 57,935,384.73
5. Step 5: Solve for x
   x = 57,935,384.73/9,789.04
6. Step 6: Final answer
   x = 5,918.39