Finding the Fourth Proportional to 113,016.16, 155,902.83 and 86,111.94

Step by Step Solution

1. Step 1: Write the proportion equation
   113,016.16 : 155,902.83 = 86,111.94 : x
2. Step 2: Convert to fraction form
   113,016.16/155,902.83 = 86,111.94/x
3. Step 3: Cross multiply
   113,016.16x = 155,902.83 × 86,111.94
4. Step 4: Simplify right side
   113,016.16x = 13,425,095,404.51
5. Step 5: Solve for x
   x = 13,425,095,404.51/113,016.16
6. Step 6: Final answer
   x = 118,789.16