Finding the Fourth Proportional to 22,484.25, 30,999.42 and 18,436.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,484.25 : 30,999.42 = 18,436.16 : x
2. Step 2: Convert to fraction form
   22,484.25/30,999.42 = 18,436.16/x
3. Step 3: Cross multiply
   22,484.25x = 30,999.42 × 18,436.16
4. Step 4: Simplify right side
   22,484.25x = 571,510,344.53
5. Step 5: Solve for x
   x = 571,510,344.53/22,484.25
6. Step 6: Final answer
   x = 25,418.25