Finding the Fourth Proportional to 114,786.48, 158,404.50 and 64,485.48

Step by Step Solution

1. Step 1: Write the proportion equation
   114,786.48 : 158,404.50 = 64,485.48 : x
2. Step 2: Convert to fraction form
   114,786.48/158,404.50 = 64,485.48/x
3. Step 3: Cross multiply
   114,786.48x = 158,404.50 × 64,485.48
4. Step 4: Simplify right side
   114,786.48x = 10,214,790,216.66
5. Step 5: Solve for x
   x = 10,214,790,216.66/114,786.48
6. Step 6: Final answer
   x = 88,989.49