Finding the Fourth Proportional to 9,663.81, 14,499.86 and 4,119.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,663.81 : 14,499.86 = 4,119.77 : x
2. Step 2: Convert to fraction form
   9,663.81/14,499.86 = 4,119.77/x
3. Step 3: Cross multiply
   9,663.81x = 14,499.86 × 4,119.77
4. Step 4: Simplify right side
   9,663.81x = 59,735,995.13
5. Step 5: Solve for x
   x = 59,735,995.13/9,663.81
6. Step 6: Final answer
   x = 6,181.41