Finding the Fourth Proportional to 103,196.22, 142,441.02 and 67,391.79

Step by Step Solution

1. Step 1: Write the proportion equation
   103,196.22 : 142,441.02 = 67,391.79 : x
2. Step 2: Convert to fraction form
   103,196.22/142,441.02 = 67,391.79/x
3. Step 3: Cross multiply
   103,196.22x = 142,441.02 × 67,391.79
4. Step 4: Simplify right side
   103,196.22x = 9,599,355,307.23
5. Step 5: Solve for x
   x = 9,599,355,307.23/103,196.22
6. Step 6: Final answer
   x = 93,020.42