Finding the Fourth Proportional to 14,477.18, 19,978.86 and 8,103.71

Step by Step Solution

1. Step 1: Write the proportion equation
   14,477.18 : 19,978.86 = 8,103.71 : x
2. Step 2: Convert to fraction form
   14,477.18/19,978.86 = 8,103.71/x
3. Step 3: Cross multiply
   14,477.18x = 19,978.86 × 8,103.71
4. Step 4: Simplify right side
   14,477.18x = 161,902,887.57
5. Step 5: Solve for x
   x = 161,902,887.57/14,477.18
6. Step 6: Final answer
   x = 11,183.32