Finding the Fourth Proportional to 219,111.38, 302,373.72 and 118,509.38

Step by Step Solution

1. Step 1: Write the proportion equation
   219,111.38 : 302,373.72 = 118,509.38 : x
2. Step 2: Convert to fraction form
   219,111.38/302,373.72 = 118,509.38/x
3. Step 3: Cross multiply
   219,111.38x = 302,373.72 × 118,509.38
4. Step 4: Simplify right side
   219,111.38x = 35,834,122,085.49
5. Step 5: Solve for x
   x = 35,834,122,085.49/219,111.38
6. Step 6: Final answer
   x = 163,542.95