Finding the Fourth Proportional to 281,050.91, 387,840.42 and 160,231.10

Step by Step Solution

1. Step 1: Write the proportion equation
   281,050.91 : 387,840.42 = 160,231.10 : x
2. Step 2: Convert to fraction form
   281,050.91/387,840.42 = 160,231.10/x
3. Step 3: Cross multiply
   281,050.91x = 387,840.42 × 160,231.10
4. Step 4: Simplify right side
   281,050.91x = 62,144,095,181.86
5. Step 5: Solve for x
   x = 62,144,095,181.86/281,050.91
6. Step 6: Final answer
   x = 221,113.31