Finding the Fourth Proportional to 112,906.50, 155,805.69 and 65,175.22

Step by Step Solution

1. Step 1: Write the proportion equation
   112,906.50 : 155,805.69 = 65,175.22 : x
2. Step 2: Convert to fraction form
   112,906.50/155,805.69 = 65,175.22/x
3. Step 3: Cross multiply
   112,906.50x = 155,805.69 × 65,175.22
4. Step 4: Simplify right side
   112,906.50x = 10,154,670,123.00
5. Step 5: Solve for x
   x = 10,154,670,123.00/112,906.50
6. Step 6: Final answer
   x = 89,938.76