Finding the Fourth Proportional to 6,389.88, 8,816.70 and 3,736.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,389.88 : 8,816.70 = 3,736.76 : x
2. Step 2: Convert to fraction form
   6,389.88/8,816.70 = 3,736.76/x
3. Step 3: Cross multiply
   6,389.88x = 8,816.70 × 3,736.76
4. Step 4: Simplify right side
   6,389.88x = 32,945,891.89
5. Step 5: Solve for x
   x = 32,945,891.89/6,389.88
6. Step 6: Final answer
   x = 5,155.95