Finding the Fourth Proportional to 143,336.59, 197,787.31 and 78,795.18

Step by Step Solution

1. Step 1: Write the proportion equation
   143,336.59 : 197,787.31 = 78,795.18 : x
2. Step 2: Convert to fraction form
   143,336.59/197,787.31 = 78,795.18/x
3. Step 3: Cross multiply
   143,336.59x = 197,787.31 × 78,795.18
4. Step 4: Simplify right side
   143,336.59x = 15,584,686,385.37
5. Step 5: Solve for x
   x = 15,584,686,385.37/143,336.59
6. Step 6: Final answer
   x = 108,727.90