Finding the Fourth Proportional to 30,544.65, 42,151.55 and 18,607.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,544.65 : 42,151.55 = 18,607.98 : x
2. Step 2: Convert to fraction form
   30,544.65/42,151.55 = 18,607.98/x
3. Step 3: Cross multiply
   30,544.65x = 42,151.55 × 18,607.98
4. Step 4: Simplify right side
   30,544.65x = 784,355,245.89
5. Step 5: Solve for x
   x = 784,355,245.89/30,544.65
6. Step 6: Final answer
   x = 25,678.97