Finding the Fourth Proportional to 8,592.31, 12,946.99 and 7,066.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,592.31 : 12,946.99 = 7,066.48 : x
2. Step 2: Convert to fraction form
   8,592.31/12,946.99 = 7,066.48/x
3. Step 3: Cross multiply
   8,592.31x = 12,946.99 × 7,066.48
4. Step 4: Simplify right side
   8,592.31x = 91,489,645.90
5. Step 5: Solve for x
   x = 91,489,645.90/8,592.31
6. Step 6: Final answer
   x = 10,647.85