Finding the Fourth Proportional to 30,842.75, 42,549.72 and 18,099.83

Step by Step Solution

1. Step 1: Write the proportion equation
   30,842.75 : 42,549.72 = 18,099.83 : x
2. Step 2: Convert to fraction form
   30,842.75/42,549.72 = 18,099.83/x
3. Step 3: Cross multiply
   30,842.75x = 42,549.72 × 18,099.83
4. Step 4: Simplify right side
   30,842.75x = 770,142,698.55
5. Step 5: Solve for x
   x = 770,142,698.55/30,842.75
6. Step 6: Final answer
   x = 24,969.98