Finding the Fourth Proportional to 30,697, 42,362.34 and 19,534.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,697 : 42,362.34 = 19,534.12 : x
2. Step 2: Convert to fraction form
   30,697/42,362.34 = 19,534.12/x
3. Step 3: Cross multiply
   30,697x = 42,362.34 × 19,534.12
4. Step 4: Simplify right side
   30,697x = 827,511,033.04
5. Step 5: Solve for x
   x = 827,511,033.04/30,697
6. Step 6: Final answer
   x = 26,957.39