Finding the Fourth Proportional to 36,158.10, 49,896.72 and 21,051.20

Step by Step Solution

1. Step 1: Write the proportion equation
   36,158.10 : 49,896.72 = 21,051.20 : x
2. Step 2: Convert to fraction form
   36,158.10/49,896.72 = 21,051.20/x
3. Step 3: Cross multiply
   36,158.10x = 49,896.72 × 21,051.20
4. Step 4: Simplify right side
   36,158.10x = 1,050,385,582.58
5. Step 5: Solve for x
   x = 1,050,385,582.58/36,158.10
6. Step 6: Final answer
   x = 29,049.80