Finding the Fourth Proportional to 213,613.36, 294,789.72 and 118,118.32

Step by Step Solution

1. Step 1: Write the proportion equation
   213,613.36 : 294,789.72 = 118,118.32 : x
2. Step 2: Convert to fraction form
   213,613.36/294,789.72 = 118,118.32/x
3. Step 3: Cross multiply
   213,613.36x = 294,789.72 × 118,118.32
4. Step 4: Simplify right side
   213,613.36x = 34,820,066,479.67
5. Step 5: Solve for x
   x = 34,820,066,479.67/213,613.36
6. Step 6: Final answer
   x = 163,005.10