Finding the Fourth Proportional to 30,773.82, 42,460.83 and 19,429.67

Step by Step Solution

1. Step 1: Write the proportion equation
   30,773.82 : 42,460.83 = 19,429.67 : x
2. Step 2: Convert to fraction form
   30,773.82/42,460.83 = 19,429.67/x
3. Step 3: Cross multiply
   30,773.82x = 42,460.83 × 19,429.67
4. Step 4: Simplify right side
   30,773.82x = 825,000,075.62
5. Step 5: Solve for x
   x = 825,000,075.62/30,773.82
6. Step 6: Final answer
   x = 26,808.50