Finding the Fourth Proportional to 6,740.63, 10,112.78 and 3,820.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,740.63 : 10,112.78 = 3,820.98 : x
2. Step 2: Convert to fraction form
   6,740.63/10,112.78 = 3,820.98/x
3. Step 3: Cross multiply
   6,740.63x = 10,112.78 × 3,820.98
4. Step 4: Simplify right side
   6,740.63x = 38,640,730.12
5. Step 5: Solve for x
   x = 38,640,730.12/6,740.63
6. Step 6: Final answer
   x = 5,732.51