Finding the Fourth Proportional to 70,992.89, 106,300.71 and 42,874.91

Step by Step Solution

1. Step 1: Write the proportion equation
   70,992.89 : 106,300.71 = 42,874.91 : x
2. Step 2: Convert to fraction form
   70,992.89/106,300.71 = 42,874.91/x
3. Step 3: Cross multiply
   70,992.89x = 106,300.71 × 42,874.91
4. Step 4: Simplify right side
   70,992.89x = 4,557,633,241.31
5. Step 5: Solve for x
   x = 4,557,633,241.31/70,992.89
6. Step 6: Final answer
   x = 64,198.45