Finding the Fourth Proportional to 142,729.41, 196,978.59 and 79,073.13

Step by Step Solution

1. Step 1: Write the proportion equation
   142,729.41 : 196,978.59 = 79,073.13 : x
2. Step 2: Convert to fraction form
   142,729.41/196,978.59 = 79,073.13/x
3. Step 3: Cross multiply
   142,729.41x = 196,978.59 × 79,073.13
4. Step 4: Simplify right side
   142,729.41x = 15,575,713,654.29
5. Step 5: Solve for x
   x = 15,575,713,654.29/142,729.41
6. Step 6: Final answer
   x = 109,127.57