Finding the Fourth Proportional to 142,670.88, 196,883.37 and 79,007.31

Step by Step Solution

1. Step 1: Write the proportion equation
   142,670.88 : 196,883.37 = 79,007.31 : x
2. Step 2: Convert to fraction form
   142,670.88/196,883.37 = 79,007.31/x
3. Step 3: Cross multiply
   142,670.88x = 196,883.37 × 79,007.31
4. Step 4: Simplify right side
   142,670.88x = 15,555,225,447.43
5. Step 5: Solve for x
   x = 15,555,225,447.43/142,670.88
6. Step 6: Final answer
   x = 109,028.73