Finding the Fourth Proportional to 142,681.83, 196,900.77 and 79,019.61

Step by Step Solution

1. Step 1: Write the proportion equation
   142,681.83 : 196,900.77 = 79,019.61 : x
2. Step 2: Convert to fraction form
   142,681.83/196,900.77 = 79,019.61/x
3. Step 3: Cross multiply
   142,681.83x = 196,900.77 × 79,019.61
4. Step 4: Simplify right side
   142,681.83x = 15,559,022,054.10
5. Step 5: Solve for x
   x = 15,559,022,054.10/142,681.83
6. Step 6: Final answer
   x = 109,046.98