Finding the Fourth Proportional to 36,800.07, 50,790.72 and 21,691.83

Step by Step Solution

1. Step 1: Write the proportion equation
   36,800.07 : 50,790.72 = 21,691.83 : x
2. Step 2: Convert to fraction form
   36,800.07/50,790.72 = 21,691.83/x
3. Step 3: Cross multiply
   36,800.07x = 50,790.72 × 21,691.83
4. Step 4: Simplify right side
   36,800.07x = 1,101,743,663.82
5. Step 5: Solve for x
   x = 1,101,743,663.82/36,800.07
6. Step 6: Final answer
   x = 29,938.63