Finding the Fourth Proportional to 139,414.82, 209,004.67 and 60,469.59

Step by Step Solution

1. Step 1: Write the proportion equation
   139,414.82 : 209,004.67 = 60,469.59 : x
2. Step 2: Convert to fraction form
   139,414.82/209,004.67 = 60,469.59/x
3. Step 3: Cross multiply
   139,414.82x = 209,004.67 × 60,469.59
4. Step 4: Simplify right side
   139,414.82x = 12,638,426,702.99
5. Step 5: Solve for x
   x = 12,638,426,702.99/139,414.82
6. Step 6: Final answer
   x = 90,653.39