Finding the Fourth Proportional to 196,629.10, 295,016.55 and 78,385.30

Step by Step Solution

1. Step 1: Write the proportion equation
   196,629.10 : 295,016.55 = 78,385.30 : x
2. Step 2: Convert to fraction form
   196,629.10/295,016.55 = 78,385.30/x
3. Step 3: Cross multiply
   196,629.10x = 295,016.55 × 78,385.30
4. Step 4: Simplify right side
   196,629.10x = 23,124,960,776.72
5. Step 5: Solve for x
   x = 23,124,960,776.72/196,629.10
6. Step 6: Final answer
   x = 117,607.01