Finding the Fourth Proportional to 262,105.50, 393,158.52 and 65,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   262,105.50 : 393,158.52 = 65,113.50 : x
2. Step 2: Convert to fraction form
   262,105.50/393,158.52 = 65,113.50/x
3. Step 3: Cross multiply
   262,105.50x = 393,158.52 × 65,113.50
4. Step 4: Simplify right side
   262,105.50x = 25,599,927,292.02
5. Step 5: Solve for x
   x = 25,599,927,292.02/262,105.50
6. Step 6: Final answer
   x = 97,670.32