Finding the Fourth Proportional to 152,105, 209,905.62 and 85,049.96

Step by Step Solution

1. Step 1: Write the proportion equation
   152,105 : 209,905.62 = 85,049.96 : x
2. Step 2: Convert to fraction form
   152,105/209,905.62 = 85,049.96/x
3. Step 3: Cross multiply
   152,105x = 209,905.62 × 85,049.96
4. Step 4: Simplify right side
   152,105x = 17,852,464,584.78
5. Step 5: Solve for x
   x = 17,852,464,584.78/152,105
6. Step 6: Final answer
   x = 117,369.35