Finding the Fourth Proportional to 22,770.54, 31,422.51 and 12,698.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,770.54 : 31,422.51 = 12,698.82 : x
2. Step 2: Convert to fraction form
   22,770.54/31,422.51 = 12,698.82/x
3. Step 3: Cross multiply
   22,770.54x = 31,422.51 × 12,698.82
4. Step 4: Simplify right side
   22,770.54x = 399,028,798.44
5. Step 5: Solve for x
   x = 399,028,798.44/22,770.54
6. Step 6: Final answer
   x = 17,523.91