Finding the Fourth Proportional to 143,591.61, 198,154.79 and 79,059.53

Step by Step Solution

1. Step 1: Write the proportion equation
   143,591.61 : 198,154.79 = 79,059.53 : x
2. Step 2: Convert to fraction form
   143,591.61/198,154.79 = 79,059.53/x
3. Step 3: Cross multiply
   143,591.61x = 198,154.79 × 79,059.53
4. Step 4: Simplify right side
   143,591.61x = 15,666,023,994.83
5. Step 5: Solve for x
   x = 15,666,023,994.83/143,591.61
6. Step 6: Final answer
   x = 109,101.25