Finding the Fourth Proportional to 213,815.76, 295,061.32 and 118,316.72

Step by Step Solution

1. Step 1: Write the proportion equation
   213,815.76 : 295,061.32 = 118,316.72 : x
2. Step 2: Convert to fraction form
   213,815.76/295,061.32 = 118,316.72/x
3. Step 3: Cross multiply
   213,815.76x = 295,061.32 × 118,316.72
4. Step 4: Simplify right side
   213,815.76x = 34,910,687,581.27
5. Step 5: Solve for x
   x = 34,910,687,581.27/213,815.76
6. Step 6: Final answer
   x = 163,274.62