Finding the Fourth Proportional to 105,271.98, 157,908.65 and 42,097.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,271.98 : 157,908.65 = 42,097.42 : x
2. Step 2: Convert to fraction form
   105,271.98/157,908.65 = 42,097.42/x
3. Step 3: Cross multiply
   105,271.98x = 157,908.65 × 42,097.42
4. Step 4: Simplify right side
   105,271.98x = 6,647,546,760.68
5. Step 5: Solve for x
   x = 6,647,546,760.68/105,271.98
6. Step 6: Final answer
   x = 63,146.40