Finding the Fourth Proportional to 158,422.37, 238,131.78 and 137,621.43

Step by Step Solution

1. Step 1: Write the proportion equation
   158,422.37 : 238,131.78 = 137,621.43 : x
2. Step 2: Convert to fraction form
   158,422.37/238,131.78 = 137,621.43/x
3. Step 3: Cross multiply
   158,422.37x = 238,131.78 × 137,621.43
4. Step 4: Simplify right side
   158,422.37x = 32,772,036,092.05
5. Step 5: Solve for x
   x = 32,772,036,092.05/158,422.37
6. Step 6: Final answer
   x = 206,864.96