Finding the Fourth Proportional to 6,635.89, 9,154.10 and 4,642.07

Step by Step Solution

1. Step 1: Write the proportion equation
   6,635.89 : 9,154.10 = 4,642.07 : x
2. Step 2: Convert to fraction form
   6,635.89/9,154.10 = 4,642.07/x
3. Step 3: Cross multiply
   6,635.89x = 9,154.10 × 4,642.07
4. Step 4: Simplify right side
   6,635.89x = 42,493,949.78
5. Step 5: Solve for x
   x = 42,493,949.78/6,635.89
6. Step 6: Final answer
   x = 6,403.66