Finding the Fourth Proportional to 162,253.12, 222,282.82 and 156,188.56

Step by Step Solution

1. Step 1: Write the proportion equation
   162,253.12 : 222,282.82 = 156,188.56 : x
2. Step 2: Convert to fraction form
   162,253.12/222,282.82 = 156,188.56/x
3. Step 3: Cross multiply
   162,253.12x = 222,282.82 × 156,188.56
4. Step 4: Simplify right side
   162,253.12x = 34,718,033,568.54
5. Step 5: Solve for x
   x = 34,718,033,568.54/162,253.12
6. Step 6: Final answer
   x = 213,974.52