Finding the Fourth Proportional to 12,835.08, 17,702.82 and 8,642.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,835.08 : 17,702.82 = 8,642.52 : x
2. Step 2: Convert to fraction form
   12,835.08/17,702.82 = 8,642.52/x
3. Step 3: Cross multiply
   12,835.08x = 17,702.82 × 8,642.52
4. Step 4: Simplify right side
   12,835.08x = 152,996,975.91
5. Step 5: Solve for x
   x = 152,996,975.91/12,835.08
6. Step 6: Final answer
   x = 11,920.22