Finding the Fourth Proportional to 120,164.82, 180,256.79 and 70,250.03

Step by Step Solution

1. Step 1: Write the proportion equation
   120,164.82 : 180,256.79 = 70,250.03 : x
2. Step 2: Convert to fraction form
   120,164.82/180,256.79 = 70,250.03/x
3. Step 3: Cross multiply
   120,164.82x = 180,256.79 × 70,250.03
4. Step 4: Simplify right side
   120,164.82x = 12,663,045,869.45
5. Step 5: Solve for x
   x = 12,663,045,869.45/120,164.82
6. Step 6: Final answer
   x = 105,380.65