Finding the Fourth Proportional to 30,788.37, 42,488.15 and 16,641.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,788.37 : 42,488.15 = 16,641.18 : x
2. Step 2: Convert to fraction form
   30,788.37/42,488.15 = 16,641.18/x
3. Step 3: Cross multiply
   30,788.37x = 42,488.15 × 16,641.18
4. Step 4: Simplify right side
   30,788.37x = 707,052,868.81
5. Step 5: Solve for x
   x = 707,052,868.81/30,788.37
6. Step 6: Final answer
   x = 22,964.93