Finding the Fourth Proportional to 30,768.26, 42,460.07 and 16,621.07

Step by Step Solution

1. Step 1: Write the proportion equation
   30,768.26 : 42,460.07 = 16,621.07 : x
2. Step 2: Convert to fraction form
   30,768.26/42,460.07 = 16,621.07/x
3. Step 3: Cross multiply
   30,768.26x = 42,460.07 × 16,621.07
4. Step 4: Simplify right side
   30,768.26x = 705,731,500.27
5. Step 5: Solve for x
   x = 705,731,500.27/30,768.26
6. Step 6: Final answer
   x = 22,937.00