Finding the Fourth Proportional to 213,016.05, 293,957.24 and 117,522.72

Step by Step Solution

1. Step 1: Write the proportion equation
   213,016.05 : 293,957.24 = 117,522.72 : x
2. Step 2: Convert to fraction form
   213,016.05/293,957.24 = 117,522.72/x
3. Step 3: Cross multiply
   213,016.05x = 293,957.24 × 117,522.72
4. Step 4: Simplify right side
   213,016.05x = 34,546,653,820.88
5. Step 5: Solve for x
   x = 34,546,653,820.88/213,016.05
6. Step 6: Final answer
   x = 162,178.64