Finding the Fourth Proportional to 147,888, 204,086.64 and 80,820

Step by Step Solution

1. Step 1: Write the proportion equation
   147,888 : 204,086.64 = 80,820 : x
2. Step 2: Convert to fraction form
   147,888/204,086.64 = 80,820/x
3. Step 3: Cross multiply
   147,888x = 204,086.64 × 80,820
4. Step 4: Simplify right side
   147,888x = 16,494,282,244.80
5. Step 5: Solve for x
   x = 16,494,282,244.80/147,888
6. Step 6: Final answer
   x = 111,532.26