Finding the Fourth Proportional to 143,162.73, 214,557.27 and 79,980.30

Step by Step Solution

1. Step 1: Write the proportion equation
   143,162.73 : 214,557.27 = 79,980.30 : x
2. Step 2: Convert to fraction form
   143,162.73/214,557.27 = 79,980.30/x
3. Step 3: Cross multiply
   143,162.73x = 214,557.27 × 79,980.30
4. Step 4: Simplify right side
   143,162.73x = 17,160,354,821.78
5. Step 5: Solve for x
   x = 17,160,354,821.78/143,162.73
6. Step 6: Final answer
   x = 119,866.08