Finding the Fourth Proportional to 12,101.89, 18,143.82 and 5,083.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,101.89 : 18,143.82 = 5,083.96 : x
2. Step 2: Convert to fraction form
   12,101.89/18,143.82 = 5,083.96/x
3. Step 3: Cross multiply
   12,101.89x = 18,143.82 × 5,083.96
4. Step 4: Simplify right side
   12,101.89x = 92,242,455.13
5. Step 5: Solve for x
   x = 92,242,455.13/12,101.89
6. Step 6: Final answer
   x = 7,622.15