Finding the Fourth Proportional to 155,945.91, 215,205.48 and 84,325.98

Step by Step Solution

1. Step 1: Write the proportion equation
   155,945.91 : 215,205.48 = 84,325.98 : x
2. Step 2: Convert to fraction form
   155,945.91/215,205.48 = 84,325.98/x
3. Step 3: Cross multiply
   155,945.91x = 215,205.48 × 84,325.98
4. Step 4: Simplify right side
   155,945.91x = 18,147,413,002.37
5. Step 5: Solve for x
   x = 18,147,413,002.37/155,945.91
6. Step 6: Final answer
   x = 116,369.92