Finding the Fourth Proportional to 35,484.96, 53,235.72 and 12,111.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,484.96 : 53,235.72 = 12,111.42 : x
2. Step 2: Convert to fraction form
   35,484.96/53,235.72 = 12,111.42/x
3. Step 3: Cross multiply
   35,484.96x = 53,235.72 × 12,111.42
4. Step 4: Simplify right side
   35,484.96x = 644,760,163.92
5. Step 5: Solve for x
   x = 644,760,163.92/35,484.96
6. Step 6: Final answer
   x = 18,169.96