Finding the Fourth Proportional to 111,828.22, 154,321.40 and 60,840.37

Step by Step Solution

1. Step 1: Write the proportion equation
   111,828.22 : 154,321.40 = 60,840.37 : x
2. Step 2: Convert to fraction form
   111,828.22/154,321.40 = 60,840.37/x
3. Step 3: Cross multiply
   111,828.22x = 154,321.40 × 60,840.37
4. Step 4: Simplify right side
   111,828.22x = 9,388,970,551.86
5. Step 5: Solve for x
   x = 9,388,970,551.86/111,828.22
6. Step 6: Final answer
   x = 83,958.87