Finding the Fourth Proportional to 656,920.72, 985,381.92 and 158,284.72

Step by Step Solution

1. Step 1: Write the proportion equation
   656,920.72 : 985,381.92 = 158,284.72 : x
2. Step 2: Convert to fraction form
   656,920.72/985,381.92 = 158,284.72/x
3. Step 3: Cross multiply
   656,920.72x = 985,381.92 × 158,284.72
4. Step 4: Simplify right side
   656,920.72x = 155,970,901,300.26
5. Step 5: Solve for x
   x = 155,970,901,300.26/656,920.72
6. Step 6: Final answer
   x = 237,427.28