Finding the Fourth Proportional to 9,936.63, 14,906.75 and 4,090.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,936.63 : 14,906.75 = 4,090.05 : x
2. Step 2: Convert to fraction form
   9,936.63/14,906.75 = 4,090.05/x
3. Step 3: Cross multiply
   9,936.63x = 14,906.75 × 4,090.05
4. Step 4: Simplify right side
   9,936.63x = 60,969,332.39
5. Step 5: Solve for x
   x = 60,969,332.39/9,936.63
6. Step 6: Final answer
   x = 6,135.82