Finding the Fourth Proportional to 37,196.61, 55,803.12 and 12,235.65

Step by Step Solution

1. Step 1: Write the proportion equation
   37,196.61 : 55,803.12 = 12,235.65 : x
2. Step 2: Convert to fraction form
   37,196.61/55,803.12 = 12,235.65/x
3. Step 3: Cross multiply
   37,196.61x = 55,803.12 × 12,235.65
4. Step 4: Simplify right side
   37,196.61x = 682,787,445.23
5. Step 5: Solve for x
   x = 682,787,445.23/37,196.61
6. Step 6: Final answer
   x = 18,356.17