Finding the Fourth Proportional to 30,802.24, 42,506.94 and 18,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,802.24 : 42,506.94 = 18,698.50 : x
2. Step 2: Convert to fraction form
   30,802.24/42,506.94 = 18,698.50/x
3. Step 3: Cross multiply
   30,802.24x = 42,506.94 × 18,698.50
4. Step 4: Simplify right side
   30,802.24x = 794,816,017.59
5. Step 5: Solve for x
   x = 794,816,017.59/30,802.24
6. Step 6: Final answer
   x = 25,803.84