Finding the Fourth Proportional to 37,168.55, 51,292.61 and 20,172.78

Step by Step Solution

1. Step 1: Write the proportion equation
   37,168.55 : 51,292.61 = 20,172.78 : x
2. Step 2: Convert to fraction form
   37,168.55/51,292.61 = 20,172.78/x
3. Step 3: Cross multiply
   37,168.55x = 51,292.61 × 20,172.78
4. Step 4: Simplify right side
   37,168.55x = 1,034,714,436.29
5. Step 5: Solve for x
   x = 1,034,714,436.29/37,168.55
6. Step 6: Final answer
   x = 27,838.44