Finding the Fourth Proportional to 30,993.30, 42,773.06 and 19,060.79

Step by Step Solution

1. Step 1: Write the proportion equation
   30,993.30 : 42,773.06 = 19,060.79 : x
2. Step 2: Convert to fraction form
   30,993.30/42,773.06 = 19,060.79/x
3. Step 3: Cross multiply
   30,993.30x = 42,773.06 × 19,060.79
4. Step 4: Simplify right side
   30,993.30x = 815,288,148.10
5. Step 5: Solve for x
   x = 815,288,148.10/30,993.30
6. Step 6: Final answer
   x = 26,305.30