Finding the Fourth Proportional to 9,936.59, 14,890.91 and 7,847.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,936.59 : 14,890.91 = 7,847.42 : x
2. Step 2: Convert to fraction form
   9,936.59/14,890.91 = 7,847.42/x
3. Step 3: Cross multiply
   9,936.59x = 14,890.91 × 7,847.42
4. Step 4: Simplify right side
   9,936.59x = 116,855,111.26
5. Step 5: Solve for x
   x = 116,855,111.26/9,936.59
6. Step 6: Final answer
   x = 11,760.09