Finding the Fourth Proportional to 11,100.72, 16,645.32 and 4,078.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,100.72 : 16,645.32 = 4,078.94 : x
2. Step 2: Convert to fraction form
   11,100.72/16,645.32 = 4,078.94/x
3. Step 3: Cross multiply
   11,100.72x = 16,645.32 × 4,078.94
4. Step 4: Simplify right side
   11,100.72x = 67,895,261.56
5. Step 5: Solve for x
   x = 67,895,261.56/11,100.72
6. Step 6: Final answer
   x = 6,116.29