Finding the Fourth Proportional to 40,559.50, 60,842.01 and 12,477.82

Step by Step Solution

1. Step 1: Write the proportion equation
   40,559.50 : 60,842.01 = 12,477.82 : x
2. Step 2: Convert to fraction form
   40,559.50/60,842.01 = 12,477.82/x
3. Step 3: Cross multiply
   40,559.50x = 60,842.01 × 12,477.82
4. Step 4: Simplify right side
   40,559.50x = 759,175,649.22
5. Step 5: Solve for x
   x = 759,175,649.22/40,559.50
6. Step 6: Final answer
   x = 18,717.58