Finding the Fourth Proportional to 177,921.89, 266,871.32 and 67,111.01

Step by Step Solution

1. Step 1: Write the proportion equation
   177,921.89 : 266,871.32 = 67,111.01 : x
2. Step 2: Convert to fraction form
   177,921.89/266,871.32 = 67,111.01/x
3. Step 3: Cross multiply
   177,921.89x = 266,871.32 × 67,111.01
4. Step 4: Simplify right side
   177,921.89x = 17,910,003,489.68
5. Step 5: Solve for x
   x = 17,910,003,489.68/177,921.89
6. Step 6: Final answer
   x = 100,662.17