Finding the Fourth Proportional to 6,997.76, 10,499.52 and 3,877.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,997.76 : 10,499.52 = 3,877.28 : x
2. Step 2: Convert to fraction form
   6,997.76/10,499.52 = 3,877.28/x
3. Step 3: Cross multiply
   6,997.76x = 10,499.52 × 3,877.28
4. Step 4: Simplify right side
   6,997.76x = 40,709,578.91
5. Step 5: Solve for x
   x = 40,709,578.91/6,997.76
6. Step 6: Final answer
   x = 5,817.52