Finding the Fourth Proportional to 39,980.50, 55,173.50 and 22,075.46

Step by Step Solution

1. Step 1: Write the proportion equation
   39,980.50 : 55,173.50 = 22,075.46 : x
2. Step 2: Convert to fraction form
   39,980.50/55,173.50 = 22,075.46/x
3. Step 3: Cross multiply
   39,980.50x = 55,173.50 × 22,075.46
4. Step 4: Simplify right side
   39,980.50x = 1,217,980,575.10
5. Step 5: Solve for x
   x = 1,217,980,575.10/39,980.50
6. Step 6: Final answer
   x = 30,464.37