Finding the Fourth Proportional to 143,499.40, 198,023.74 and 79,835.83

Step by Step Solution

1. Step 1: Write the proportion equation
   143,499.40 : 198,023.74 = 79,835.83 : x
2. Step 2: Convert to fraction form
   143,499.40/198,023.74 = 79,835.83/x
3. Step 3: Cross multiply
   143,499.40x = 198,023.74 × 79,835.83
4. Step 4: Simplify right side
   143,499.40x = 15,809,388,947.96
5. Step 5: Solve for x
   x = 15,809,388,947.96/143,499.40
6. Step 6: Final answer
   x = 110,170.42