Finding the Fourth Proportional to 105,249.24, 157,911.12 and 65,760.12

Step by Step Solution

1. Step 1: Write the proportion equation
   105,249.24 : 157,911.12 = 65,760.12 : x
2. Step 2: Convert to fraction form
   105,249.24/157,911.12 = 65,760.12/x
3. Step 3: Cross multiply
   105,249.24x = 157,911.12 × 65,760.12
4. Step 4: Simplify right side
   105,249.24x = 10,384,254,200.53
5. Step 5: Solve for x
   x = 10,384,254,200.53/105,249.24
6. Step 6: Final answer
   x = 98,663.46