Finding the Fourth Proportional to 30,891.48, 42,607.70 and 19,562.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,891.48 : 42,607.70 = 19,562.82 : x
2. Step 2: Convert to fraction form
   30,891.48/42,607.70 = 19,562.82/x
3. Step 3: Cross multiply
   30,891.48x = 42,607.70 × 19,562.82
4. Step 4: Simplify right side
   30,891.48x = 833,526,765.71
5. Step 5: Solve for x
   x = 833,526,765.71/30,891.48
6. Step 6: Final answer
   x = 26,982.42