Finding the Fourth Proportional to 22,300.76, 30,774.13 and 13,342.97

Step by Step Solution

1. Step 1: Write the proportion equation
   22,300.76 : 30,774.13 = 13,342.97 : x
2. Step 2: Convert to fraction form
   22,300.76/30,774.13 = 13,342.97/x
3. Step 3: Cross multiply
   22,300.76x = 30,774.13 × 13,342.97
4. Step 4: Simplify right side
   22,300.76x = 410,618,336.94
5. Step 5: Solve for x
   x = 410,618,336.94/22,300.76
6. Step 6: Final answer
   x = 18,412.75