Finding the Fourth Proportional to 42,486.58, 58,647.54 and 36,494.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,486.58 : 58,647.54 = 36,494.20 : x
2. Step 2: Convert to fraction form
   42,486.58/58,647.54 = 36,494.20/x
3. Step 3: Cross multiply
   42,486.58x = 58,647.54 × 36,494.20
4. Step 4: Simplify right side
   42,486.58x = 2,140,295,054.27
5. Step 5: Solve for x
   x = 2,140,295,054.27/42,486.58
6. Step 6: Final answer
   x = 50,375.79