Finding the Fourth Proportional to 114,960, 158,643.24 and 64,659.12

Step by Step Solution

1. Step 1: Write the proportion equation
   114,960 : 158,643.24 = 64,659.12 : x
2. Step 2: Convert to fraction form
   114,960/158,643.24 = 64,659.12/x
3. Step 3: Cross multiply
   114,960x = 158,643.24 × 64,659.12
4. Step 4: Simplify right side
   114,960x = 10,257,732,292.35
5. Step 5: Solve for x
   x = 10,257,732,292.35/114,960
6. Step 6: Final answer
   x = 89,228.71