Finding the Fourth Proportional to 142,726.81, 196,962.59 and 79,064.61

Step by Step Solution

1. Step 1: Write the proportion equation
   142,726.81 : 196,962.59 = 79,064.61 : x
2. Step 2: Convert to fraction form
   142,726.81/196,962.59 = 79,064.61/x
3. Step 3: Cross multiply
   142,726.81x = 196,962.59 × 79,064.61
4. Step 4: Simplify right side
   142,726.81x = 15,572,769,377.25
5. Step 5: Solve for x
   x = 15,572,769,377.25/142,726.81
6. Step 6: Final answer
   x = 109,108.93