Finding the Fourth Proportional to 139,896.36, 209,799.18 and 46,377

Step by Step Solution

1. Step 1: Write the proportion equation
   139,896.36 : 209,799.18 = 46,377 : x
2. Step 2: Convert to fraction form
   139,896.36/209,799.18 = 46,377/x
3. Step 3: Cross multiply
   139,896.36x = 209,799.18 × 46,377
4. Step 4: Simplify right side
   139,896.36x = 9,729,856,570.86
5. Step 5: Solve for x
   x = 9,729,856,570.86/139,896.36
6. Step 6: Final answer
   x = 69,550.46