Finding the Fourth Proportional to 35,677, 49,223.20 and 20,567.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,677 : 49,223.20 = 20,567.72 : x
2. Step 2: Convert to fraction form
   35,677/49,223.20 = 20,567.72/x
3. Step 3: Cross multiply
   35,677x = 49,223.20 × 20,567.72
4. Step 4: Simplify right side
   35,677x = 1,012,408,995.10
5. Step 5: Solve for x
   x = 1,012,408,995.10/35,677
6. Step 6: Final answer
   x = 28,377.08