Finding the Fourth Proportional to 22,048.66, 30,426.70 and 12,488.38

Step by Step Solution

1. Step 1: Write the proportion equation
   22,048.66 : 30,426.70 = 12,488.38 : x
2. Step 2: Convert to fraction form
   22,048.66/30,426.70 = 12,488.38/x
3. Step 3: Cross multiply
   22,048.66x = 30,426.70 × 12,488.38
4. Step 4: Simplify right side
   22,048.66x = 379,980,191.75
5. Step 5: Solve for x
   x = 379,980,191.75/22,048.66
6. Step 6: Final answer
   x = 17,233.71