Finding the Fourth Proportional to 6,605.74, 9,116.31 and 5,555.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,605.74 : 9,116.31 = 5,555.98 : x
2. Step 2: Convert to fraction form
   6,605.74/9,116.31 = 5,555.98/x
3. Step 3: Cross multiply
   6,605.74x = 9,116.31 × 5,555.98
4. Step 4: Simplify right side
   6,605.74x = 50,650,036.03
5. Step 5: Solve for x
   x = 50,650,036.03/6,605.74
6. Step 6: Final answer
   x = 7,667.58