Finding the Fourth Proportional to 30,825.92, 42,546.24 and 19,488.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,825.92 : 42,546.24 = 19,488.16 : x
2. Step 2: Convert to fraction form
   30,825.92/42,546.24 = 19,488.16/x
3. Step 3: Cross multiply
   30,825.92x = 42,546.24 × 19,488.16
4. Step 4: Simplify right side
   30,825.92x = 829,147,932.52
5. Step 5: Solve for x
   x = 829,147,932.52/30,825.92
6. Step 6: Final answer
   x = 26,897.75