Finding the Fourth Proportional to 37,212.16, 55,823.36 and 10,918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,212.16 : 55,823.36 = 10,918.72 : x
2. Step 2: Convert to fraction form
   37,212.16/55,823.36 = 10,918.72/x
3. Step 3: Cross multiply
   37,212.16x = 55,823.36 × 10,918.72
4. Step 4: Simplify right side
   37,212.16x = 609,519,637.30
5. Step 5: Solve for x
   x = 609,519,637.30/37,212.16
6. Step 6: Final answer
   x = 16,379.58