Finding the Fourth Proportional to 89,939.50, 134,915.79 and 34,535.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,939.50 : 134,915.79 = 34,535.50 : x
2. Step 2: Convert to fraction form
   89,939.50/134,915.79 = 34,535.50/x
3. Step 3: Cross multiply
   89,939.50x = 134,915.79 × 34,535.50
4. Step 4: Simplify right side
   89,939.50x = 4,659,384,265.55
5. Step 5: Solve for x
   x = 4,659,384,265.55/89,939.50
6. Step 6: Final answer
   x = 51,805.76