Finding the Fourth Proportional to 114,949.32, 158,628.50 and 64,648.32

Step by Step Solution

1. Step 1: Write the proportion equation
   114,949.32 : 158,628.50 = 64,648.32 : x
2. Step 2: Convert to fraction form
   114,949.32/158,628.50 = 64,648.32/x
3. Step 3: Cross multiply
   114,949.32x = 158,628.50 × 64,648.32
4. Step 4: Simplify right side
   114,949.32x = 10,255,066,029.12
5. Step 5: Solve for x
   x = 10,255,066,029.12/114,949.32
6. Step 6: Final answer
   x = 89,213.80