Finding the Fourth Proportional to 108,404.42, 162,606.63 and 71,459.78

Step by Step Solution

1. Step 1: Write the proportion equation
   108,404.42 : 162,606.63 = 71,459.78 : x
2. Step 2: Convert to fraction form
   108,404.42/162,606.63 = 71,459.78/x
3. Step 3: Cross multiply
   108,404.42x = 162,606.63 × 71,459.78
4. Step 4: Simplify right side
   108,404.42x = 11,619,834,006.34
5. Step 5: Solve for x
   x = 11,619,834,006.34/108,404.42
6. Step 6: Final answer
   x = 107,189.67