Finding the Fourth Proportional to 116,025.36, 160,109.64 and 65,724.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,025.36 : 160,109.64 = 65,724.72 : x
2. Step 2: Convert to fraction form
   116,025.36/160,109.64 = 65,724.72/x
3. Step 3: Cross multiply
   116,025.36x = 160,109.64 × 65,724.72
4. Step 4: Simplify right side
   116,025.36x = 10,523,161,258.30
5. Step 5: Solve for x
   x = 10,523,161,258.30/116,025.36
6. Step 6: Final answer
   x = 90,697.08