Finding the Fourth Proportional to 79,200.22, 118,505.05 and 78,314.48

Step by Step Solution

1. Step 1: Write the proportion equation
   79,200.22 : 118,505.05 = 78,314.48 : x
2. Step 2: Convert to fraction form
   79,200.22/118,505.05 = 78,314.48/x
3. Step 3: Cross multiply
   79,200.22x = 118,505.05 × 78,314.48
4. Step 4: Simplify right side
   79,200.22x = 9,280,661,468.60
5. Step 5: Solve for x
   x = 9,280,661,468.60/79,200.22
6. Step 6: Final answer
   x = 117,179.75