Finding the Fourth Proportional to 22,778.69, 31,424.89 and 14,275.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,778.69 : 31,424.89 = 14,275.02 : x
2. Step 2: Convert to fraction form
   22,778.69/31,424.89 = 14,275.02/x
3. Step 3: Cross multiply
   22,778.69x = 31,424.89 × 14,275.02
4. Step 4: Simplify right side
   22,778.69x = 448,590,933.25
5. Step 5: Solve for x
   x = 448,590,933.25/22,778.69
6. Step 6: Final answer
   x = 19,693.45