Finding the Fourth Proportional to 12,807, 17,663.94 and 8,834.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,807 : 17,663.94 = 8,834.76 : x
2. Step 2: Convert to fraction form
   12,807/17,663.94 = 8,834.76/x
3. Step 3: Cross multiply
   12,807x = 17,663.94 × 8,834.76
4. Step 4: Simplify right side
   12,807x = 156,056,670.55
5. Step 5: Solve for x
   x = 156,056,670.55/12,807
6. Step 6: Final answer
   x = 12,185.26