Finding the Fourth Proportional to 30,618.29, 45,915.78 and 18,141.83

Step by Step Solution

1. Step 1: Write the proportion equation
   30,618.29 : 45,915.78 = 18,141.83 : x
2. Step 2: Convert to fraction form
   30,618.29/45,915.78 = 18,141.83/x
3. Step 3: Cross multiply
   30,618.29x = 45,915.78 × 18,141.83
4. Step 4: Simplify right side
   30,618.29x = 832,996,441.94
5. Step 5: Solve for x
   x = 832,996,441.94/30,618.29
6. Step 6: Final answer
   x = 27,205.84