Finding the Fourth Proportional to 36,111.36, 54,153.76 and 12,412.18

Step by Step Solution

1. Step 1: Write the proportion equation
   36,111.36 : 54,153.76 = 12,412.18 : x
2. Step 2: Convert to fraction form
   36,111.36/54,153.76 = 12,412.18/x
3. Step 3: Cross multiply
   36,111.36x = 54,153.76 × 12,412.18
4. Step 4: Simplify right side
   36,111.36x = 672,166,216.80
5. Step 5: Solve for x
   x = 672,166,216.80/36,111.36
6. Step 6: Final answer
   x = 18,613.71