Finding the Fourth Proportional to 196,617.10, 294,998.55 and 78,373.30

Step by Step Solution

1. Step 1: Write the proportion equation
   196,617.10 : 294,998.55 = 78,373.30 : x
2. Step 2: Convert to fraction form
   196,617.10/294,998.55 = 78,373.30/x
3. Step 3: Cross multiply
   196,617.10x = 294,998.55 × 78,373.30
4. Step 4: Simplify right side
   196,617.10x = 23,120,009,858.72
5. Step 5: Solve for x
   x = 23,120,009,858.72/196,617.10
6. Step 6: Final answer
   x = 117,589.01