Finding the Fourth Proportional to 136,835.06, 188,832.57 and 83,105.78

Step by Step Solution

1. Step 1: Write the proportion equation
   136,835.06 : 188,832.57 = 83,105.78 : x
2. Step 2: Convert to fraction form
   136,835.06/188,832.57 = 83,105.78/x
3. Step 3: Cross multiply
   136,835.06x = 188,832.57 × 83,105.78
4. Step 4: Simplify right side
   136,835.06x = 15,693,078,019.25
5. Step 5: Solve for x
   x = 15,693,078,019.25/136,835.06
6. Step 6: Final answer
   x = 114,686.09