Finding the Fourth Proportional to 281,162.72, 388,004.10 and 153,838.82

Step by Step Solution

1. Step 1: Write the proportion equation
   281,162.72 : 388,004.10 = 153,838.82 : x
2. Step 2: Convert to fraction form
   281,162.72/388,004.10 = 153,838.82/x
3. Step 3: Cross multiply
   281,162.72x = 388,004.10 × 153,838.82
4. Step 4: Simplify right side
   281,162.72x = 59,690,092,899.16
5. Step 5: Solve for x
   x = 59,690,092,899.16/281,162.72
6. Step 6: Final answer
   x = 212,297.32