Finding the Fourth Proportional to 148,059, 204,326.28 and 80,991

Step by Step Solution

1. Step 1: Write the proportion equation
   148,059 : 204,326.28 = 80,991 : x
2. Step 2: Convert to fraction form
   148,059/204,326.28 = 80,991/x
3. Step 3: Cross multiply
   148,059x = 204,326.28 × 80,991
4. Step 4: Simplify right side
   148,059x = 16,548,589,743.48
5. Step 5: Solve for x
   x = 16,548,589,743.48/148,059
6. Step 6: Final answer
   x = 111,770.24