Finding the Fourth Proportional to 30,933.36, 42,695.91 and 19,609.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,933.36 : 42,695.91 = 19,609.56 : x
2. Step 2: Convert to fraction form
   30,933.36/42,695.91 = 19,609.56/x
3. Step 3: Cross multiply
   30,933.36x = 42,695.91 × 19,609.56
4. Step 4: Simplify right side
   30,933.36x = 837,248,008.90
5. Step 5: Solve for x
   x = 837,248,008.90/30,933.36
6. Step 6: Final answer
   x = 27,066.18