Finding the Fourth Proportional to 143,591.99, 198,155.32 and 79,059.91

Step by Step Solution

1. Step 1: Write the proportion equation
   143,591.99 : 198,155.32 = 79,059.91 : x
2. Step 2: Convert to fraction form
   143,591.99/198,155.32 = 79,059.91/x
3. Step 3: Cross multiply
   143,591.99x = 198,155.32 × 79,059.91
4. Step 4: Simplify right side
   143,591.99x = 15,666,141,765.22
5. Step 5: Solve for x
   x = 15,666,141,765.22/143,591.99
6. Step 6: Final answer
   x = 109,101.78