Finding the Fourth Proportional to 34,043.38, 46,979.86 and 19,139.38

Step by Step Solution

1. Step 1: Write the proportion equation
   34,043.38 : 46,979.86 = 19,139.38 : x
2. Step 2: Convert to fraction form
   34,043.38/46,979.86 = 19,139.38/x
3. Step 3: Cross multiply
   34,043.38x = 46,979.86 × 19,139.38
4. Step 4: Simplify right side
   34,043.38x = 899,165,392.89
5. Step 5: Solve for x
   x = 899,165,392.89/34,043.38
6. Step 6: Final answer
   x = 26,412.34