Finding the Fourth Proportional to 79,546.86, 119,374.56 and 42,105.42

Step by Step Solution

1. Step 1: Write the proportion equation
   79,546.86 : 119,374.56 = 42,105.42 : x
2. Step 2: Convert to fraction form
   79,546.86/119,374.56 = 42,105.42/x
3. Step 3: Cross multiply
   79,546.86x = 119,374.56 × 42,105.42
4. Step 4: Simplify right side
   79,546.86x = 5,026,315,986.12
5. Step 5: Solve for x
   x = 5,026,315,986.12/79,546.86
6. Step 6: Final answer
   x = 63,186.86