Finding the Fourth Proportional to 163,234.78, 244,562.72 and 139,299.48

Step by Step Solution

1. Step 1: Write the proportion equation
   163,234.78 : 244,562.72 = 139,299.48 : x
2. Step 2: Convert to fraction form
   163,234.78/244,562.72 = 139,299.48/x
3. Step 3: Cross multiply
   163,234.78x = 244,562.72 × 139,299.48
4. Step 4: Simplify right side
   163,234.78x = 34,067,459,026.89
5. Step 5: Solve for x
   x = 34,067,459,026.89/163,234.78
6. Step 6: Final answer
   x = 208,702.21