Finding the Fourth Proportional to 11,443.55, 15,790.27 and 6,407.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,443.55 : 15,790.27 = 6,407.98 : x
2. Step 2: Convert to fraction form
   11,443.55/15,790.27 = 6,407.98/x
3. Step 3: Cross multiply
   11,443.55x = 15,790.27 × 6,407.98
4. Step 4: Simplify right side
   11,443.55x = 101,183,678.86
5. Step 5: Solve for x
   x = 101,183,678.86/11,443.55
6. Step 6: Final answer
   x = 8,841.99