Finding the Fourth Proportional to 235,962.72, 325,626.89 and 128,532.42

Step by Step Solution

1. Step 1: Write the proportion equation
   235,962.72 : 325,626.89 = 128,532.42 : x
2. Step 2: Convert to fraction form
   235,962.72/325,626.89 = 128,532.42/x
3. Step 3: Cross multiply
   235,962.72x = 325,626.89 × 128,532.42
4. Step 4: Simplify right side
   235,962.72x = 41,853,611,546.11
5. Step 5: Solve for x
   x = 41,853,611,546.11/235,962.72
6. Step 6: Final answer
   x = 177,373.83