Finding the Fourth Proportional to 131,244, 181,116.72 and 80,972.16

Step by Step Solution

1. Step 1: Write the proportion equation
   131,244 : 181,116.72 = 80,972.16 : x
2. Step 2: Convert to fraction form
   131,244/181,116.72 = 80,972.16/x
3. Step 3: Cross multiply
   131,244x = 181,116.72 × 80,972.16
4. Step 4: Simplify right side
   131,244x = 14,665,412,030.52
5. Step 5: Solve for x
   x = 14,665,412,030.52/131,244
6. Step 6: Final answer
   x = 111,741.58