Finding the Fourth Proportional to 143,112.42, 214,669.37 and 83,906.57

Step by Step Solution

1. Step 1: Write the proportion equation
   143,112.42 : 214,669.37 = 83,906.57 : x
2. Step 2: Convert to fraction form
   143,112.42/214,669.37 = 83,906.57/x
3. Step 3: Cross multiply
   143,112.42x = 214,669.37 × 83,906.57
4. Step 4: Simplify right side
   143,112.42x = 18,012,171,267.20
5. Step 5: Solve for x
   x = 18,012,171,267.20/143,112.42
6. Step 6: Final answer
   x = 125,860.29