Finding the Fourth Proportional to 142,973.28, 197,300.34 and 79,310.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,973.28 : 197,300.34 = 79,310.52 : x
2. Step 2: Convert to fraction form
   142,973.28/197,300.34 = 79,310.52/x
3. Step 3: Cross multiply
   142,973.28x = 197,300.34 × 79,310.52
4. Step 4: Simplify right side
   142,973.28x = 15,647,992,561.58
5. Step 5: Solve for x
   x = 15,647,992,561.58/142,973.28
6. Step 6: Final answer
   x = 109,446.97