Finding the Fourth Proportional to 37,098.86, 55,648.71 and 13,408.20

Step by Step Solution

1. Step 1: Write the proportion equation
   37,098.86 : 55,648.71 = 13,408.20 : x
2. Step 2: Convert to fraction form
   37,098.86/55,648.71 = 13,408.20/x
3. Step 3: Cross multiply
   37,098.86x = 55,648.71 × 13,408.20
4. Step 4: Simplify right side
   37,098.86x = 746,149,033.42
5. Step 5: Solve for x
   x = 746,149,033.42/37,098.86
6. Step 6: Final answer
   x = 20,112.45