Finding the Fourth Proportional to 35,913.42, 49,547.06 and 20,800.57

Step by Step Solution

1. Step 1: Write the proportion equation
   35,913.42 : 49,547.06 = 20,800.57 : x
2. Step 2: Convert to fraction form
   35,913.42/49,547.06 = 20,800.57/x
3. Step 3: Cross multiply
   35,913.42x = 49,547.06 × 20,800.57
4. Step 4: Simplify right side
   35,913.42x = 1,030,607,089.82
5. Step 5: Solve for x
   x = 1,030,607,089.82/35,913.42
6. Step 6: Final answer
   x = 28,696.99