Finding the Fourth Proportional to 30,338.42, 45,522.30 and 12,326.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,338.42 : 45,522.30 = 12,326.18 : x
2. Step 2: Convert to fraction form
   30,338.42/45,522.30 = 12,326.18/x
3. Step 3: Cross multiply
   30,338.42x = 45,522.30 × 12,326.18
4. Step 4: Simplify right side
   30,338.42x = 561,116,063.81
5. Step 5: Solve for x
   x = 561,116,063.81/30,338.42
6. Step 6: Final answer
   x = 18,495.23