Finding the Fourth Proportional to 4,663.77, 6,431.56 and 3,069.89

Step by Step Solution

1. Step 1: Write the proportion equation
   4,663.77 : 6,431.56 = 3,069.89 : x
2. Step 2: Convert to fraction form
   4,663.77/6,431.56 = 3,069.89/x
3. Step 3: Cross multiply
   4,663.77x = 6,431.56 × 3,069.89
4. Step 4: Simplify right side
   4,663.77x = 19,744,181.73
5. Step 5: Solve for x
   x = 19,744,181.73/4,663.77
6. Step 6: Final answer
   x = 4,233.52