Finding the Fourth Proportional to 152,120.35, 209,924.83 and 84,137.12

Step by Step Solution

1. Step 1: Write the proportion equation
   152,120.35 : 209,924.83 = 84,137.12 : x
2. Step 2: Convert to fraction form
   152,120.35/209,924.83 = 84,137.12/x
3. Step 3: Cross multiply
   152,120.35x = 209,924.83 × 84,137.12
4. Step 4: Simplify right side
   152,120.35x = 17,662,470,612.69
5. Step 5: Solve for x
   x = 17,662,470,612.69/152,120.35
6. Step 6: Final answer
   x = 116,108.53