Finding the Fourth Proportional to 37,290.42, 55,922.31 and 12,325.86

Step by Step Solution

1. Step 1: Write the proportion equation
   37,290.42 : 55,922.31 = 12,325.86 : x
2. Step 2: Convert to fraction form
   37,290.42/55,922.31 = 12,325.86/x
3. Step 3: Cross multiply
   37,290.42x = 55,922.31 × 12,325.86
4. Step 4: Simplify right side
   37,290.42x = 689,290,563.94
5. Step 5: Solve for x
   x = 689,290,563.94/37,290.42
6. Step 6: Final answer
   x = 18,484.39