Finding the Fourth Proportional to 22,075.77, 30,467.32 and 12,644.33

Step by Step Solution

1. Step 1: Write the proportion equation
   22,075.77 : 30,467.32 = 12,644.33 : x
2. Step 2: Convert to fraction form
   22,075.77/30,467.32 = 12,644.33/x
3. Step 3: Cross multiply
   22,075.77x = 30,467.32 × 12,644.33
4. Step 4: Simplify right side
   22,075.77x = 385,238,848.30
5. Step 5: Solve for x
   x = 385,238,848.30/22,075.77
6. Step 6: Final answer
   x = 17,450.75