Finding the Fourth Proportional to 22,693.14, 31,314.72 and 12,620.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,693.14 : 31,314.72 = 12,620.79 : x
2. Step 2: Convert to fraction form
   22,693.14/31,314.72 = 12,620.79/x
3. Step 3: Cross multiply
   22,693.14x = 31,314.72 × 12,620.79
4. Step 4: Simplify right side
   22,693.14x = 395,216,505.03
5. Step 5: Solve for x
   x = 395,216,505.03/22,693.14
6. Step 6: Final answer
   x = 17,415.68