Finding the Fourth Proportional to 143,103.54, 197,461.89 and 79,441.86

Step by Step Solution

1. Step 1: Write the proportion equation
   143,103.54 : 197,461.89 = 79,441.86 : x
2. Step 2: Convert to fraction form
   143,103.54/197,461.89 = 79,441.86/x
3. Step 3: Cross multiply
   143,103.54x = 197,461.89 × 79,441.86
4. Step 4: Simplify right side
   143,103.54x = 15,686,739,820.72
5. Step 5: Solve for x
   x = 15,686,739,820.72/143,103.54
6. Step 6: Final answer
   x = 109,618.11