Finding the Fourth Proportional to 37,039.98, 55,566.09 and 12,072.78

Step by Step Solution

1. Step 1: Write the proportion equation
   37,039.98 : 55,566.09 = 12,072.78 : x
2. Step 2: Convert to fraction form
   37,039.98/55,566.09 = 12,072.78/x
3. Step 3: Cross multiply
   37,039.98x = 55,566.09 × 12,072.78
4. Step 4: Simplify right side
   37,039.98x = 670,837,180.03
5. Step 5: Solve for x
   x = 670,837,180.03/37,039.98
6. Step 6: Final answer
   x = 18,111.16