Finding the Fourth Proportional to 143,005.89, 197,348.15 and 79,343.54

Step by Step Solution

1. Step 1: Write the proportion equation
   143,005.89 : 197,348.15 = 79,343.54 : x
2. Step 2: Convert to fraction form
   143,005.89/197,348.15 = 79,343.54/x
3. Step 3: Cross multiply
   143,005.89x = 197,348.15 × 79,343.54
4. Step 4: Simplify right side
   143,005.89x = 15,658,300,833.45
5. Step 5: Solve for x
   x = 15,658,300,833.45/143,005.89
6. Step 6: Final answer
   x = 109,494.10