Finding the Fourth Proportional to 152,911.97, 211,018.52 and 85,843.97

Step by Step Solution

1. Step 1: Write the proportion equation
   152,911.97 : 211,018.52 = 85,843.97 : x
2. Step 2: Convert to fraction form
   152,911.97/211,018.52 = 85,843.97/x
3. Step 3: Cross multiply
   152,911.97x = 211,018.52 × 85,843.97
4. Step 4: Simplify right side
   152,911.97x = 18,114,667,500.32
5. Step 5: Solve for x
   x = 18,114,667,500.32/152,911.97
6. Step 6: Final answer
   x = 118,464.68