Finding the Fourth Proportional to 36,071.85, 49,779.31 and 19,719.39

Step by Step Solution

1. Step 1: Write the proportion equation
   36,071.85 : 49,779.31 = 19,719.39 : x
2. Step 2: Convert to fraction form
   36,071.85/49,779.31 = 19,719.39/x
3. Step 3: Cross multiply
   36,071.85x = 49,779.31 × 19,719.39
4. Step 4: Simplify right side
   36,071.85x = 981,617,578.52
5. Step 5: Solve for x
   x = 981,617,578.52/36,071.85
6. Step 6: Final answer
   x = 27,212.84