Finding the Fourth Proportional to 30,888.22, 42,603.24 and 19,559.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,888.22 : 42,603.24 = 19,559.56 : x
2. Step 2: Convert to fraction form
   30,888.22/42,603.24 = 19,559.56/x
3. Step 3: Cross multiply
   30,888.22x = 42,603.24 × 19,559.56
4. Step 4: Simplify right side
   30,888.22x = 833,300,628.97
5. Step 5: Solve for x
   x = 833,300,628.97/30,888.22
6. Step 6: Final answer
   x = 26,977.94