Finding the Fourth Proportional to 143,086.05, 197,467.71 and 79,424.91

Step by Step Solution

1. Step 1: Write the proportion equation
   143,086.05 : 197,467.71 = 79,424.91 : x
2. Step 2: Convert to fraction form
   143,086.05/197,467.71 = 79,424.91/x
3. Step 3: Cross multiply
   143,086.05x = 197,467.71 × 79,424.91
4. Step 4: Simplify right side
   143,086.05x = 15,683,855,094.66
5. Step 5: Solve for x
   x = 15,683,855,094.66/143,086.05
6. Step 6: Final answer
   x = 109,611.35