Finding the Fourth Proportional to 152,161.50, 209,983.59 and 85,093.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,161.50 : 209,983.59 = 85,093.50 : x
2. Step 2: Convert to fraction form
   152,161.50/209,983.59 = 85,093.50/x
3. Step 3: Cross multiply
   152,161.50x = 209,983.59 × 85,093.50
4. Step 4: Simplify right side
   152,161.50x = 17,868,238,615.67
5. Step 5: Solve for x
   x = 17,868,238,615.67/152,161.50
6. Step 6: Final answer
   x = 117,429.43