Finding the Fourth Proportional to 30,950.72, 42,695.88 and 19,016.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,950.72 : 42,695.88 = 19,016.72 : x
2. Step 2: Convert to fraction form
   30,950.72/42,695.88 = 19,016.72/x
3. Step 3: Cross multiply
   30,950.72x = 42,695.88 × 19,016.72
4. Step 4: Simplify right side
   30,950.72x = 811,935,595.11
5. Step 5: Solve for x
   x = 811,935,595.11/30,950.72
6. Step 6: Final answer
   x = 26,233.17