Finding the Fourth Proportional to 195,426.73, 269,320.31 and 156,620.48

Step by Step Solution

1. Step 1: Write the proportion equation
   195,426.73 : 269,320.31 = 156,620.48 : x
2. Step 2: Convert to fraction form
   195,426.73/269,320.31 = 156,620.48/x
3. Step 3: Cross multiply
   195,426.73x = 269,320.31 × 156,620.48
4. Step 4: Simplify right side
   195,426.73x = 42,181,074,683.57
5. Step 5: Solve for x
   x = 42,181,074,683.57/195,426.73
6. Step 6: Final answer
   x = 215,840.86