Finding the Fourth Proportional to 219,096.42, 302,352.18 and 123,603.12

Step by Step Solution

1. Step 1: Write the proportion equation
   219,096.42 : 302,352.18 = 123,603.12 : x
2. Step 2: Convert to fraction form
   219,096.42/302,352.18 = 123,603.12/x
3. Step 3: Cross multiply
   219,096.42x = 302,352.18 × 123,603.12
4. Step 4: Simplify right side
   219,096.42x = 37,371,672,786.80
5. Step 5: Solve for x
   x = 37,371,672,786.80/219,096.42
6. Step 6: Final answer
   x = 170,571.81