Finding the Fourth Proportional to 36,111.72, 49,834.54 and 19,978.19

Step by Step Solution

1. Step 1: Write the proportion equation
   36,111.72 : 49,834.54 = 19,978.19 : x
2. Step 2: Convert to fraction form
   36,111.72/49,834.54 = 19,978.19/x
3. Step 3: Cross multiply
   36,111.72x = 49,834.54 × 19,978.19
4. Step 4: Simplify right side
   36,111.72x = 995,604,151.68
5. Step 5: Solve for x
   x = 995,604,151.68/36,111.72
6. Step 6: Final answer
   x = 27,570.11