Finding the Fourth Proportional to 54,143.42, 74,719.56 and 30,271.10

Step by Step Solution

1. Step 1: Write the proportion equation
   54,143.42 : 74,719.56 = 30,271.10 : x
2. Step 2: Convert to fraction form
   54,143.42/74,719.56 = 30,271.10/x
3. Step 3: Cross multiply
   54,143.42x = 74,719.56 × 30,271.10
4. Step 4: Simplify right side
   54,143.42x = 2,261,843,272.72
5. Step 5: Solve for x
   x = 2,261,843,272.72/54,143.42
6. Step 6: Final answer
   x = 41,775.04