Finding the Fourth Proportional to 30,989.02, 42,764.72 and 16,841.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,989.02 : 42,764.72 = 16,841.82 : x
2. Step 2: Convert to fraction form
   30,989.02/42,764.72 = 16,841.82/x
3. Step 3: Cross multiply
   30,989.02x = 42,764.72 × 16,841.82
4. Step 4: Simplify right side
   30,989.02x = 720,235,716.59
5. Step 5: Solve for x
   x = 720,235,716.59/30,989.02
6. Step 6: Final answer
   x = 23,241.64