Finding the Fourth Proportional to 35,641.96, 49,181.59 and 20,539.57

Step by Step Solution

1. Step 1: Write the proportion equation
   35,641.96 : 49,181.59 = 20,539.57 : x
2. Step 2: Convert to fraction form
   35,641.96/49,181.59 = 20,539.57/x
3. Step 3: Cross multiply
   35,641.96x = 49,181.59 × 20,539.57
4. Step 4: Simplify right side
   35,641.96x = 1,010,168,710.52
5. Step 5: Solve for x
   x = 1,010,168,710.52/35,641.96
6. Step 6: Final answer
   x = 28,342.12