Finding the Fourth Proportional to 22,075.88, 30,464.71 and 12,139.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,075.88 : 30,464.71 = 12,139.88 : x
2. Step 2: Convert to fraction form
   22,075.88/30,464.71 = 12,139.88/x
3. Step 3: Cross multiply
   22,075.88x = 30,464.71 × 12,139.88
4. Step 4: Simplify right side
   22,075.88x = 369,837,740.96
5. Step 5: Solve for x
   x = 369,837,740.96/22,075.88
6. Step 6: Final answer
   x = 16,753.03