Finding the Fourth Proportional to 12,364.76, 17,050.82 and 8,107.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,364.76 : 17,050.82 = 8,107.40 : x
2. Step 2: Convert to fraction form
   12,364.76/17,050.82 = 8,107.40/x
3. Step 3: Cross multiply
   12,364.76x = 17,050.82 × 8,107.40
4. Step 4: Simplify right side
   12,364.76x = 138,237,818.07
5. Step 5: Solve for x
   x = 138,237,818.07/12,364.76
6. Step 6: Final answer
   x = 11,179.98