Finding the Fourth Proportional to 111,914.60, 154,453.30 and 83,571.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,914.60 : 154,453.30 = 83,571.08 : x
2. Step 2: Convert to fraction form
   111,914.60/154,453.30 = 83,571.08/x
3. Step 3: Cross multiply
   111,914.60x = 154,453.30 × 83,571.08
4. Step 4: Simplify right side
   111,914.60x = 12,907,828,109.37
5. Step 5: Solve for x
   x = 12,907,828,109.37/111,914.60
6. Step 6: Final answer
   x = 115,336.41