Finding the Fourth Proportional to 12,853.51, 17,732.61 and 8,375.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,853.51 : 17,732.61 = 8,375.63 : x
2. Step 2: Convert to fraction form
   12,853.51/17,732.61 = 8,375.63/x
3. Step 3: Cross multiply
   12,853.51x = 17,732.61 × 8,375.63
4. Step 4: Simplify right side
   12,853.51x = 148,521,691.63
5. Step 5: Solve for x
   x = 148,521,691.63/12,853.51
6. Step 6: Final answer
   x = 11,554.95