Finding the Fourth Proportional to 151,839.98, 209,540.75 and 83,858.67

Step by Step Solution

1. Step 1: Write the proportion equation
   151,839.98 : 209,540.75 = 83,858.67 : x
2. Step 2: Convert to fraction form
   151,839.98/209,540.75 = 83,858.67/x
3. Step 3: Cross multiply
   151,839.98x = 209,540.75 × 83,858.67
4. Step 4: Simplify right side
   151,839.98x = 17,571,808,186.51
5. Step 5: Solve for x
   x = 17,571,808,186.51/151,839.98
6. Step 6: Final answer
   x = 115,725.84