Finding the Fourth Proportional to 55,421.87, 76,482.18 and 30,271.37

Step by Step Solution

1. Step 1: Write the proportion equation
   55,421.87 : 76,482.18 = 30,271.37 : x
2. Step 2: Convert to fraction form
   55,421.87/76,482.18 = 30,271.37/x
3. Step 3: Cross multiply
   55,421.87x = 76,482.18 × 30,271.37
4. Step 4: Simplify right side
   55,421.87x = 2,315,219,986.78
5. Step 5: Solve for x
   x = 2,315,219,986.78/55,421.87
6. Step 6: Final answer
   x = 41,774.49