Finding the Fourth Proportional to 262,928.71, 362,915.94 and 155,536.09

Step by Step Solution

1. Step 1: Write the proportion equation
   262,928.71 : 362,915.94 = 155,536.09 : x
2. Step 2: Convert to fraction form
   262,928.71/362,915.94 = 155,536.09/x
3. Step 3: Cross multiply
   262,928.71x = 362,915.94 × 155,536.09
4. Step 4: Simplify right side
   262,928.71x = 56,446,526,306.27
5. Step 5: Solve for x
   x = 56,446,526,306.27/262,928.71
6. Step 6: Final answer
   x = 214,683.77