Finding the Fourth Proportional to 143,100.94, 214,712.43 and 71,986.18

Step by Step Solution

1. Step 1: Write the proportion equation
   143,100.94 : 214,712.43 = 71,986.18 : x
2. Step 2: Convert to fraction form
   143,100.94/214,712.43 = 71,986.18/x
3. Step 3: Cross multiply
   143,100.94x = 214,712.43 × 71,986.18
4. Step 4: Simplify right side
   143,100.94x = 15,456,327,634.22
5. Step 5: Solve for x
   x = 15,456,327,634.22/143,100.94
6. Step 6: Final answer
   x = 108,009.97