Finding the Fourth Proportional to 108,554.17, 149,856.06 and 72,767.56

Step by Step Solution

1. Step 1: Write the proportion equation
   108,554.17 : 149,856.06 = 72,767.56 : x
2. Step 2: Convert to fraction form
   108,554.17/149,856.06 = 72,767.56/x
3. Step 3: Cross multiply
   108,554.17x = 149,856.06 × 72,767.56
4. Step 4: Simplify right side
   108,554.17x = 10,904,659,837.41
5. Step 5: Solve for x
   x = 10,904,659,837.41/108,554.17
6. Step 6: Final answer
   x = 100,453.62