Finding the Fourth Proportional to 131,679, 181,717.38 and 72,063

Step by Step Solution

1. Step 1: Write the proportion equation
   131,679 : 181,717.38 = 72,063 : x
2. Step 2: Convert to fraction form
   131,679/181,717.38 = 72,063/x
3. Step 3: Cross multiply
   131,679x = 181,717.38 × 72,063
4. Step 4: Simplify right side
   131,679x = 13,095,099,554.94
5. Step 5: Solve for x
   x = 13,095,099,554.94/131,679
6. Step 6: Final answer
   x = 99,447.14