Finding the Fourth Proportional to 155,738.50, 233,636.91 and 72,632.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,738.50 : 233,636.91 = 72,632.50 : x
2. Step 2: Convert to fraction form
   155,738.50/233,636.91 = 72,632.50/x
3. Step 3: Cross multiply
   155,738.50x = 233,636.91 × 72,632.50
4. Step 4: Simplify right side
   155,738.50x = 16,969,632,865.58
5. Step 5: Solve for x
   x = 16,969,632,865.58/155,738.50
6. Step 6: Final answer
   x = 108,962.35