Finding the Fourth Proportional to 30,884.22, 42,597.72 and 19,555.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,884.22 : 42,597.72 = 19,555.56 : x
2. Step 2: Convert to fraction form
   30,884.22/42,597.72 = 19,555.56/x
3. Step 3: Cross multiply
   30,884.22x = 42,597.72 × 19,555.56
4. Step 4: Simplify right side
   30,884.22x = 833,022,269.32
5. Step 5: Solve for x
   x = 833,022,269.32/30,884.22
6. Step 6: Final answer
   x = 26,972.42