Finding the Fourth Proportional to 139,414.24, 209,003.79 and 60,469.01

Step by Step Solution

1. Step 1: Write the proportion equation
   139,414.24 : 209,003.79 = 60,469.01 : x
2. Step 2: Convert to fraction form
   139,414.24/209,003.79 = 60,469.01/x
3. Step 3: Cross multiply
   139,414.24x = 209,003.79 × 60,469.01
4. Step 4: Simplify right side
   139,414.24x = 12,638,251,222.53
5. Step 5: Solve for x
   x = 12,638,251,222.53/139,414.24
6. Step 6: Final answer
   x = 90,652.52