Finding the Fourth Proportional to 111,880.37, 167,821.01 and 45,321.77

Step by Step Solution

1. Step 1: Write the proportion equation
   111,880.37 : 167,821.01 = 45,321.77 : x
2. Step 2: Convert to fraction form
   111,880.37/167,821.01 = 45,321.77/x
3. Step 3: Cross multiply
   111,880.37x = 167,821.01 × 45,321.77
4. Step 4: Simplify right side
   111,880.37x = 7,605,945,216.39
5. Step 5: Solve for x
   x = 7,605,945,216.39/111,880.37
6. Step 6: Final answer
   x = 67,982.84