Finding the Fourth Proportional to 158,706.18, 238,052.79 and 65,209.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,706.18 : 238,052.79 = 65,209.50 : x
2. Step 2: Convert to fraction form
   158,706.18/238,052.79 = 65,209.50/x
3. Step 3: Cross multiply
   158,706.18x = 238,052.79 × 65,209.50
4. Step 4: Simplify right side
   158,706.18x = 15,523,303,409.51
5. Step 5: Solve for x
   x = 15,523,303,409.51/158,706.18
6. Step 6: Final answer
   x = 97,811.59