Finding the Fourth Proportional to 139,653.82, 209,513.54 and 46,159.57

Step by Step Solution

1. Step 1: Write the proportion equation
   139,653.82 : 209,513.54 = 46,159.57 : x
2. Step 2: Convert to fraction form
   139,653.82/209,513.54 = 46,159.57/x
3. Step 3: Cross multiply
   139,653.82x = 209,513.54 × 46,159.57
4. Step 4: Simplify right side
   139,653.82x = 9,671,054,915.58
5. Step 5: Solve for x
   x = 9,671,054,915.58/139,653.82
6. Step 6: Final answer
   x = 69,250.20