Finding the Fourth Proportional to 139,469.31, 209,086.38 and 60,524.06

Step by Step Solution

1. Step 1: Write the proportion equation
   139,469.31 : 209,086.38 = 60,524.06 : x
2. Step 2: Convert to fraction form
   139,469.31/209,086.38 = 60,524.06/x
3. Step 3: Cross multiply
   139,469.31x = 209,086.38 × 60,524.06
4. Step 4: Simplify right side
   139,469.31x = 12,654,755,562.87
5. Step 5: Solve for x
   x = 12,654,755,562.87/139,469.31
6. Step 6: Final answer
   x = 90,735.06