Finding the Fourth Proportional to 22,075.47, 30,470.72 and 12,650.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,075.47 : 30,470.72 = 12,650.31 : x
2. Step 2: Convert to fraction form
   22,075.47/30,470.72 = 12,650.31/x
3. Step 3: Cross multiply
   22,075.47x = 30,470.72 × 12,650.31
4. Step 4: Simplify right side
   22,075.47x = 385,463,990.67
5. Step 5: Solve for x
   x = 385,463,990.67/22,075.47
6. Step 6: Final answer
   x = 17,461.19