Finding the Fourth Proportional to 37,078.74, 55,613.48 and 12,116.70

Step by Step Solution

1. Step 1: Write the proportion equation
   37,078.74 : 55,613.48 = 12,116.70 : x
2. Step 2: Convert to fraction form
   37,078.74/55,613.48 = 12,116.70/x
3. Step 3: Cross multiply
   37,078.74x = 55,613.48 × 12,116.70
4. Step 4: Simplify right side
   37,078.74x = 673,851,792.53
5. Step 5: Solve for x
   x = 673,851,792.53/37,078.74
6. Step 6: Final answer
   x = 18,173.54