Finding the Fourth Proportional to 114,921.12, 158,606.28 and 64,629.84

Step by Step Solution

1. Step 1: Write the proportion equation
   114,921.12 : 158,606.28 = 64,629.84 : x
2. Step 2: Convert to fraction form
   114,921.12/158,606.28 = 64,629.84/x
3. Step 3: Cross multiply
   114,921.12x = 158,606.28 × 64,629.84
4. Step 4: Simplify right side
   114,921.12x = 10,250,698,499.40
5. Step 5: Solve for x
   x = 10,250,698,499.40/114,921.12
6. Step 6: Final answer
   x = 89,197.69