Finding the Fourth Proportional to 6,606.69, 9,111.93 and 5,808.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,606.69 : 9,111.93 = 5,808.31 : x
2. Step 2: Convert to fraction form
   6,606.69/9,111.93 = 5,808.31/x
3. Step 3: Cross multiply
   6,606.69x = 9,111.93 × 5,808.31
4. Step 4: Simplify right side
   6,606.69x = 52,924,885.10
5. Step 5: Solve for x
   x = 52,924,885.10/6,606.69
6. Step 6: Final answer
   x = 8,010.81