Finding the Fourth Proportional to 30,542.69, 42,169.52 and 19,075.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,542.69 : 42,169.52 = 19,075.12 : x
2. Step 2: Convert to fraction form
   30,542.69/42,169.52 = 19,075.12/x
3. Step 3: Cross multiply
   30,542.69x = 42,169.52 × 19,075.12
4. Step 4: Simplify right side
   30,542.69x = 804,388,596.61
5. Step 5: Solve for x
   x = 804,388,596.61/30,542.69
6. Step 6: Final answer
   x = 26,336.53