Finding the Fourth Proportional to 293,280.50, 404,727.10 and 159,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   293,280.50 : 404,727.10 = 159,144.50 : x
2. Step 2: Convert to fraction form
   293,280.50/404,727.10 = 159,144.50/x
3. Step 3: Cross multiply
   293,280.50x = 404,727.10 × 159,144.50
4. Step 4: Simplify right side
   293,280.50x = 64,410,091,965.95
5. Step 5: Solve for x
   x = 64,410,091,965.95/293,280.50
6. Step 6: Final answer
   x = 219,619.42