Finding the Fourth Proportional to 14,663.59, 21,991.14 and 7,162.51

Step by Step Solution

1. Step 1: Write the proportion equation
   14,663.59 : 21,991.14 = 7,162.51 : x
2. Step 2: Convert to fraction form
   14,663.59/21,991.14 = 7,162.51/x
3. Step 3: Cross multiply
   14,663.59x = 21,991.14 × 7,162.51
4. Step 4: Simplify right side
   14,663.59x = 157,511,760.16
5. Step 5: Solve for x
   x = 157,511,760.16/14,663.59
6. Step 6: Final answer
   x = 10,741.69