Finding the Fourth Proportional to 13,944.50, 19,243.55 and 7,657.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,944.50 : 19,243.55 = 7,657.01 : x
2. Step 2: Convert to fraction form
   13,944.50/19,243.55 = 7,657.01/x
3. Step 3: Cross multiply
   13,944.50x = 19,243.55 × 7,657.01
4. Step 4: Simplify right side
   13,944.50x = 147,348,016.50
5. Step 5: Solve for x
   x = 147,348,016.50/13,944.50
6. Step 6: Final answer
   x = 10,566.75