Finding the Fourth Proportional to 151,121.89, 208,544.02 and 82,209.07

Step by Step Solution

1. Step 1: Write the proportion equation
   151,121.89 : 208,544.02 = 82,209.07 : x
2. Step 2: Convert to fraction form
   151,121.89/208,544.02 = 82,209.07/x
3. Step 3: Cross multiply
   151,121.89x = 208,544.02 × 82,209.07
4. Step 4: Simplify right side
   151,121.89x = 17,144,208,484.50
5. Step 5: Solve for x
   x = 17,144,208,484.50/151,121.89
6. Step 6: Final answer
   x = 113,446.23