Finding the Fourth Proportional to 14,123.39, 21,186.45 and 5,241.11

Step by Step Solution

1. Step 1: Write the proportion equation
   14,123.39 : 21,186.45 = 5,241.11 : x
2. Step 2: Convert to fraction form
   14,123.39/21,186.45 = 5,241.11/x
3. Step 3: Cross multiply
   14,123.39x = 21,186.45 × 5,241.11
4. Step 4: Simplify right side
   14,123.39x = 111,040,409.03
5. Step 5: Solve for x
   x = 111,040,409.03/14,123.39
6. Step 6: Final answer
   x = 7,862.17