Finding the Fourth Proportional to 30,429.27, 41,979.42 and 19,091.07

Step by Step Solution

1. Step 1: Write the proportion equation
   30,429.27 : 41,979.42 = 19,091.07 : x
2. Step 2: Convert to fraction form
   30,429.27/41,979.42 = 19,091.07/x
3. Step 3: Cross multiply
   30,429.27x = 41,979.42 × 19,091.07
4. Step 4: Simplify right side
   30,429.27x = 801,432,045.78
5. Step 5: Solve for x
   x = 801,432,045.78/30,429.27
6. Step 6: Final answer
   x = 26,337.54