Finding the Fourth Proportional to 139,755.77, 209,458.69 and 110,056.31

Step by Step Solution

1. Step 1: Write the proportion equation
   139,755.77 : 209,458.69 = 110,056.31 : x
2. Step 2: Convert to fraction form
   139,755.77/209,458.69 = 110,056.31/x
3. Step 3: Cross multiply
   139,755.77x = 209,458.69 × 110,056.31
4. Step 4: Simplify right side
   139,755.77x = 23,052,250,518.83
5. Step 5: Solve for x
   x = 23,052,250,518.83/139,755.77
6. Step 6: Final answer
   x = 164,946.68