Finding the Fourth Proportional to 35,648.81, 49,200.53 and 20,538.53

Step by Step Solution

1. Step 1: Write the proportion equation
   35,648.81 : 49,200.53 = 20,538.53 : x
2. Step 2: Convert to fraction form
   35,648.81/49,200.53 = 20,538.53/x
3. Step 3: Cross multiply
   35,648.81x = 49,200.53 × 20,538.53
4. Step 4: Simplify right side
   35,648.81x = 1,010,506,315.42
5. Step 5: Solve for x
   x = 1,010,506,315.42/35,648.81
6. Step 6: Final answer
   x = 28,346.15