Finding the Fourth Proportional to 37,145.89, 55,718.87 and 13,148.04

Step by Step Solution

1. Step 1: Write the proportion equation
   37,145.89 : 55,718.87 = 13,148.04 : x
2. Step 2: Convert to fraction form
   37,145.89/55,718.87 = 13,148.04/x
3. Step 3: Cross multiply
   37,145.89x = 55,718.87 × 13,148.04
4. Step 4: Simplify right side
   37,145.89x = 732,594,148.68
5. Step 5: Solve for x
   x = 732,594,148.68/37,145.89
6. Step 6: Final answer
   x = 19,722.08