Finding the Fourth Proportional to 37,172.56, 51,298.32 and 21,257.68

Step by Step Solution

1. Step 1: Write the proportion equation
   37,172.56 : 51,298.32 = 21,257.68 : x
2. Step 2: Convert to fraction form
   37,172.56/51,298.32 = 21,257.68/x
3. Step 3: Cross multiply
   37,172.56x = 51,298.32 × 21,257.68
4. Step 4: Simplify right side
   37,172.56x = 1,090,483,271.10
5. Step 5: Solve for x
   x = 1,090,483,271.10/37,172.56
6. Step 6: Final answer
   x = 29,335.71