Finding the Fourth Proportional to 8,436.76, 12,641.30 and 5,959.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,436.76 : 12,641.30 = 5,959.47 : x
2. Step 2: Convert to fraction form
   8,436.76/12,641.30 = 5,959.47/x
3. Step 3: Cross multiply
   8,436.76x = 12,641.30 × 5,959.47
4. Step 4: Simplify right side
   8,436.76x = 75,335,463.01
5. Step 5: Solve for x
   x = 75,335,463.01/8,436.76
6. Step 6: Final answer
   x = 8,929.43