Finding the Fourth Proportional to 12,675.57, 17,492.33 and 7,086.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,675.57 : 17,492.33 = 7,086.57 : x
2. Step 2: Convert to fraction form
   12,675.57/17,492.33 = 7,086.57/x
3. Step 3: Cross multiply
   12,675.57x = 17,492.33 × 7,086.57
4. Step 4: Simplify right side
   12,675.57x = 123,960,664.74
5. Step 5: Solve for x
   x = 123,960,664.74/12,675.57
6. Step 6: Final answer
   x = 9,779.49