Finding the Fourth Proportional to 142,705.98, 196,931.79 and 79,042.41

Step by Step Solution

1. Step 1: Write the proportion equation
   142,705.98 : 196,931.79 = 79,042.41 : x
2. Step 2: Convert to fraction form
   142,705.98/196,931.79 = 79,042.41/x
3. Step 3: Cross multiply
   142,705.98x = 196,931.79 × 79,042.41
4. Step 4: Simplify right side
   142,705.98x = 15,565,963,287.21
5. Step 5: Solve for x
   x = 15,565,963,287.21/142,705.98
6. Step 6: Final answer
   x = 109,077.16