Finding the Fourth Proportional to 139,441.78, 209,210.06 and 50,702.41

Step by Step Solution

1. Step 1: Write the proportion equation
   139,441.78 : 209,210.06 = 50,702.41 : x
2. Step 2: Convert to fraction form
   139,441.78/209,210.06 = 50,702.41/x
3. Step 3: Cross multiply
   139,441.78x = 209,210.06 × 50,702.41
4. Step 4: Simplify right side
   139,441.78x = 10,607,454,238.24
5. Step 5: Solve for x
   x = 10,607,454,238.24/139,441.78
6. Step 6: Final answer
   x = 76,070.85