Finding the Fourth Proportional to 8,111.61, 11,194.01 and 4,385.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.61 : 11,194.01 = 4,385.61 : x
2. Step 2: Convert to fraction form
   8,111.61/11,194.01 = 4,385.61/x
3. Step 3: Cross multiply
   8,111.61x = 11,194.01 × 4,385.61
4. Step 4: Simplify right side
   8,111.61x = 49,092,562.20
5. Step 5: Solve for x
   x = 49,092,562.20/8,111.61
6. Step 6: Final answer
   x = 6,052.14