Finding the Fourth Proportional to 30,907.30, 42,651.84 and 16,760.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,907.30 : 42,651.84 = 16,760.12 : x
2. Step 2: Convert to fraction form
   30,907.30/42,651.84 = 16,760.12/x
3. Step 3: Cross multiply
   30,907.30x = 42,651.84 × 16,760.12
4. Step 4: Simplify right side
   30,907.30x = 714,849,956.62
5. Step 5: Solve for x
   x = 714,849,956.62/30,907.30
6. Step 6: Final answer
   x = 23,128.84