Finding the Fourth Proportional to 103,196.97, 142,442.06 and 67,392.54

Step by Step Solution

1. Step 1: Write the proportion equation
   103,196.97 : 142,442.06 = 67,392.54 : x
2. Step 2: Convert to fraction form
   103,196.97/142,442.06 = 67,392.54/x
3. Step 3: Cross multiply
   103,196.97x = 142,442.06 × 67,392.54
4. Step 4: Simplify right side
   103,196.97x = 9,599,531,889.27
5. Step 5: Solve for x
   x = 9,599,531,889.27/103,196.97
6. Step 6: Final answer
   x = 93,021.45