Finding the Fourth Proportional to 143,538.12, 198,081.18 and 79,874.82

Step by Step Solution

1. Step 1: Write the proportion equation
   143,538.12 : 198,081.18 = 79,874.82 : x
2. Step 2: Convert to fraction form
   143,538.12/198,081.18 = 79,874.82/x
3. Step 3: Cross multiply
   143,538.12x = 198,081.18 × 79,874.82
4. Step 4: Simplify right side
   143,538.12x = 15,821,698,597.89
5. Step 5: Solve for x
   x = 15,821,698,597.89/143,538.12
6. Step 6: Final answer
   x = 110,226.46