Finding the Fourth Proportional to 68,909.78, 95,105.88 and 42,067.90

Step by Step Solution

1. Step 1: Write the proportion equation
   68,909.78 : 95,105.88 = 42,067.90 : x
2. Step 2: Convert to fraction form
   68,909.78/95,105.88 = 42,067.90/x
3. Step 3: Cross multiply
   68,909.78x = 95,105.88 × 42,067.90
4. Step 4: Simplify right side
   68,909.78x = 4,000,904,649.25
5. Step 5: Solve for x
   x = 4,000,904,649.25/68,909.78
6. Step 6: Final answer
   x = 58,060.04