Finding the Fourth Proportional to 22,453.55, 30,987.97 and 12,894.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,453.55 : 30,987.97 = 12,894.69 : x
2. Step 2: Convert to fraction form
   22,453.55/30,987.97 = 12,894.69/x
3. Step 3: Cross multiply
   22,453.55x = 30,987.97 × 12,894.69
4. Step 4: Simplify right side
   22,453.55x = 399,580,047.47
5. Step 5: Solve for x
   x = 399,580,047.47/22,453.55
6. Step 6: Final answer
   x = 17,795.86