Finding the Fourth Proportional to 74,274.37, 111,128.61 and 65,318.60

Step by Step Solution

1. Step 1: Write the proportion equation
   74,274.37 : 111,128.61 = 65,318.60 : x
2. Step 2: Convert to fraction form
   74,274.37/111,128.61 = 65,318.60/x
3. Step 3: Cross multiply
   74,274.37x = 111,128.61 × 65,318.60
4. Step 4: Simplify right side
   74,274.37x = 7,258,765,380.50
5. Step 5: Solve for x
   x = 7,258,765,380.50/74,274.37
6. Step 6: Final answer
   x = 97,729.08