Finding the Fourth Proportional to 6,688.89, 10,023.76 and 3,761.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,688.89 : 10,023.76 = 3,761.05 : x
2. Step 2: Convert to fraction form
   6,688.89/10,023.76 = 3,761.05/x
3. Step 3: Cross multiply
   6,688.89x = 10,023.76 × 3,761.05
4. Step 4: Simplify right side
   6,688.89x = 37,699,862.55
5. Step 5: Solve for x
   x = 37,699,862.55/6,688.89
6. Step 6: Final answer
   x = 5,636.19