Finding the Fourth Proportional to 142,804.69, 197,070.47 and 79,146.59

Step by Step Solution

1. Step 1: Write the proportion equation
   142,804.69 : 197,070.47 = 79,146.59 : x
2. Step 2: Convert to fraction form
   142,804.69/197,070.47 = 79,146.59/x
3. Step 3: Cross multiply
   142,804.69x = 197,070.47 × 79,146.59
4. Step 4: Simplify right side
   142,804.69x = 15,597,454,605.91
5. Step 5: Solve for x
   x = 15,597,454,605.91/142,804.69
6. Step 6: Final answer
   x = 109,222.29