Finding the Fourth Proportional to 9,917.74, 14,877.16 and 3,995.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,917.74 : 14,877.16 = 3,995.06 : x
2. Step 2: Convert to fraction form
   9,917.74/14,877.16 = 3,995.06/x
3. Step 3: Cross multiply
   9,917.74x = 14,877.16 × 3,995.06
4. Step 4: Simplify right side
   9,917.74x = 59,435,146.83
5. Step 5: Solve for x
   x = 59,435,146.83/9,917.74
6. Step 6: Final answer
   x = 5,992.81