Finding the Fourth Proportional to 30,819.05, 42,535.50 and 17,896.31

Step by Step Solution

1. Step 1: Write the proportion equation
   30,819.05 : 42,535.50 = 17,896.31 : x
2. Step 2: Convert to fraction form
   30,819.05/42,535.50 = 17,896.31/x
3. Step 3: Cross multiply
   30,819.05x = 42,535.50 × 17,896.31
4. Step 4: Simplify right side
   30,819.05x = 761,228,667.45
5. Step 5: Solve for x
   x = 761,228,667.45/30,819.05
6. Step 6: Final answer
   x = 24,699.94