Finding the Fourth Proportional to 74,928.10, 111,845.55 and 65,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,928.10 : 111,845.55 = 65,469.50 : x
2. Step 2: Convert to fraction form
   74,928.10/111,845.55 = 65,469.50/x
3. Step 3: Cross multiply
   74,928.10x = 111,845.55 × 65,469.50
4. Step 4: Simplify right side
   74,928.10x = 7,322,472,059.47
5. Step 5: Solve for x
   x = 7,322,472,059.47/74,928.10
6. Step 6: Final answer
   x = 97,726.65