Finding the Fourth Proportional to 13,359.91, 19,997.94 and 8,908.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,359.91 : 19,997.94 = 8,908.82 : x
2. Step 2: Convert to fraction form
   13,359.91/19,997.94 = 8,908.82/x
3. Step 3: Cross multiply
   13,359.91x = 19,997.94 × 8,908.82
4. Step 4: Simplify right side
   13,359.91x = 178,158,047.83
5. Step 5: Solve for x
   x = 178,158,047.83/13,359.91
6. Step 6: Final answer
   x = 13,335.28