Finding the Fourth Proportional to 117,185.72, 175,804.69 and 64,568.12

Step by Step Solution

1. Step 1: Write the proportion equation
   117,185.72 : 175,804.69 = 64,568.12 : x
2. Step 2: Convert to fraction form
   117,185.72/175,804.69 = 64,568.12/x
3. Step 3: Cross multiply
   117,185.72x = 175,804.69 × 64,568.12
4. Step 4: Simplify right side
   117,185.72x = 11,351,378,320.48
5. Step 5: Solve for x
   x = 11,351,378,320.48/117,185.72
6. Step 6: Final answer
   x = 96,866.57