Finding the Fourth Proportional to 145,945.67, 201,404.94 and 78,877.67

Step by Step Solution

1. Step 1: Write the proportion equation
   145,945.67 : 201,404.94 = 78,877.67 : x
2. Step 2: Convert to fraction form
   145,945.67/201,404.94 = 78,877.67/x
3. Step 3: Cross multiply
   145,945.67x = 201,404.94 × 78,877.67
4. Step 4: Simplify right side
   145,945.67x = 15,886,352,393.69
5. Step 5: Solve for x
   x = 15,886,352,393.69/145,945.67
6. Step 6: Final answer
   x = 108,851.14