Finding the Fourth Proportional to 6,670.17, 10,007.69 and 2,777.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,670.17 : 10,007.69 = 2,777.31 : x
2. Step 2: Convert to fraction form
   6,670.17/10,007.69 = 2,777.31/x
3. Step 3: Cross multiply
   6,670.17x = 10,007.69 × 2,777.31
4. Step 4: Simplify right side
   6,670.17x = 27,794,443.63
5. Step 5: Solve for x
   x = 27,794,443.63/6,670.17
6. Step 6: Final answer
   x = 4,166.98