Finding the Fourth Proportional to 111,673.32, 154,056.72 and 66,352.68

Step by Step Solution

1. Step 1: Write the proportion equation
   111,673.32 : 154,056.72 = 66,352.68 : x
2. Step 2: Convert to fraction form
   111,673.32/154,056.72 = 66,352.68/x
3. Step 3: Cross multiply
   111,673.32x = 154,056.72 × 66,352.68
4. Step 4: Simplify right side
   111,673.32x = 10,222,076,244.01
5. Step 5: Solve for x
   x = 10,222,076,244.01/111,673.32
6. Step 6: Final answer
   x = 91,535.53