Finding the Fourth Proportional to 22,470.56, 31,010.82 and 12,913.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,470.56 : 31,010.82 = 12,913.52 : x
2. Step 2: Convert to fraction form
   22,470.56/31,010.82 = 12,913.52/x
3. Step 3: Cross multiply
   22,470.56x = 31,010.82 × 12,913.52
4. Step 4: Simplify right side
   22,470.56x = 400,458,844.29
5. Step 5: Solve for x
   x = 400,458,844.29/22,470.56
6. Step 6: Final answer
   x = 17,821.49