Finding the Fourth Proportional to 30,687.06, 42,347.52 and 17,074.80

Step by Step Solution

1. Step 1: Write the proportion equation
   30,687.06 : 42,347.52 = 17,074.80 : x
2. Step 2: Convert to fraction form
   30,687.06/42,347.52 = 17,074.80/x
3. Step 3: Cross multiply
   30,687.06x = 42,347.52 × 17,074.80
4. Step 4: Simplify right side
   30,687.06x = 723,075,434.50
5. Step 5: Solve for x
   x = 723,075,434.50/30,687.06
6. Step 6: Final answer
   x = 23,562.88