Finding the Fourth Proportional to 72,647.94, 100,249.52 and 42,441.80

Step by Step Solution

1. Step 1: Write the proportion equation
   72,647.94 : 100,249.52 = 42,441.80 : x
2. Step 2: Convert to fraction form
   72,647.94/100,249.52 = 42,441.80/x
3. Step 3: Cross multiply
   72,647.94x = 100,249.52 × 42,441.80
4. Step 4: Simplify right side
   72,647.94x = 4,254,770,077.94
5. Step 5: Solve for x
   x = 4,254,770,077.94/72,647.94
6. Step 6: Final answer
   x = 58,566.97