Finding the Fourth Proportional to 107,388.41, 160,930.27 and 79,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,388.41 : 160,930.27 = 79,086.50 : x
2. Step 2: Convert to fraction form
   107,388.41/160,930.27 = 79,086.50/x
3. Step 3: Cross multiply
   107,388.41x = 160,930.27 × 79,086.50
4. Step 4: Simplify right side
   107,388.41x = 12,727,410,795.99
5. Step 5: Solve for x
   x = 12,727,410,795.99/107,388.41
6. Step 6: Final answer
   x = 118,517.55