Finding the Fourth Proportional to 115,105.64, 158,843.36 and 64,118.24

Step by Step Solution

1. Step 1: Write the proportion equation
   115,105.64 : 158,843.36 = 64,118.24 : x
2. Step 2: Convert to fraction form
   115,105.64/158,843.36 = 64,118.24/x
3. Step 3: Cross multiply
   115,105.64x = 158,843.36 × 64,118.24
4. Step 4: Simplify right side
   115,105.64x = 10,184,756,678.89
5. Step 5: Solve for x
   x = 10,184,756,678.89/115,105.64
6. Step 6: Final answer
   x = 88,481.82