Finding the Fourth Proportional to 8,932.63, 12,315.34 and 7,687.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,932.63 : 12,315.34 = 7,687.05 : x
2. Step 2: Convert to fraction form
   8,932.63/12,315.34 = 7,687.05/x
3. Step 3: Cross multiply
   8,932.63x = 12,315.34 × 7,687.05
4. Step 4: Simplify right side
   8,932.63x = 94,668,634.35
5. Step 5: Solve for x
   x = 94,668,634.35/8,932.63
6. Step 6: Final answer
   x = 10,598.07