Finding the Fourth Proportional to 219,215.34, 302,517 and 118,613.34

Step by Step Solution

1. Step 1: Write the proportion equation
   219,215.34 : 302,517 = 118,613.34 : x
2. Step 2: Convert to fraction form
   219,215.34/302,517 = 118,613.34/x
3. Step 3: Cross multiply
   219,215.34x = 302,517 × 118,613.34
4. Step 4: Simplify right side
   219,215.34x = 35,882,551,776.78
5. Step 5: Solve for x
   x = 35,882,551,776.78/219,215.34
6. Step 6: Final answer
   x = 163,686.32