Finding the Fourth Proportional to 22,080.04, 30,470.43 and 12,648.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,080.04 : 30,470.43 = 12,648.64 : x
2. Step 2: Convert to fraction form
   22,080.04/30,470.43 = 12,648.64/x
3. Step 3: Cross multiply
   22,080.04x = 30,470.43 × 12,648.64
4. Step 4: Simplify right side
   22,080.04x = 385,409,499.72
5. Step 5: Solve for x
   x = 385,409,499.72/22,080.04
6. Step 6: Final answer
   x = 17,455.11