Finding the Fourth Proportional to 116,384.12, 160,623.78 and 65,396.96

Step by Step Solution

1. Step 1: Write the proportion equation
   116,384.12 : 160,623.78 = 65,396.96 : x
2. Step 2: Convert to fraction form
   116,384.12/160,623.78 = 65,396.96/x
3. Step 3: Cross multiply
   116,384.12x = 160,623.78 × 65,396.96
4. Step 4: Simplify right side
   116,384.12x = 10,504,306,915.71
5. Step 5: Solve for x
   x = 10,504,306,915.71/116,384.12
6. Step 6: Final answer
   x = 90,255.50