Finding the Fourth Proportional to 108,401.82, 162,602.91 and 71,196.90

Step by Step Solution

1. Step 1: Write the proportion equation
   108,401.82 : 162,602.91 = 71,196.90 : x
2. Step 2: Convert to fraction form
   108,401.82/162,602.91 = 71,196.90/x
3. Step 3: Cross multiply
   108,401.82x = 162,602.91 × 71,196.90
4. Step 4: Simplify right side
   108,401.82x = 11,576,823,122.98
5. Step 5: Solve for x
   x = 11,576,823,122.98/108,401.82
6. Step 6: Final answer
   x = 106,795.47