Finding the Fourth Proportional to 204,760.96, 307,068 and 78,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   204,760.96 : 307,068 = 78,436.72 : x
2. Step 2: Convert to fraction form
   204,760.96/307,068 = 78,436.72/x
3. Step 3: Cross multiply
   204,760.96x = 307,068 × 78,436.72
4. Step 4: Simplify right side
   204,760.96x = 24,085,406,736.96
5. Step 5: Solve for x
   x = 24,085,406,736.96/204,760.96
6. Step 6: Final answer
   x = 117,626.95