Finding the Fourth Proportional to 212,650.32, 293,458.17 and 117,156.79

Step by Step Solution

1. Step 1: Write the proportion equation
   212,650.32 : 293,458.17 = 117,156.79 : x
2. Step 2: Convert to fraction form
   212,650.32/293,458.17 = 117,156.79/x
3. Step 3: Cross multiply
   212,650.32x = 293,458.17 × 117,156.79
4. Step 4: Simplify right side
   212,650.32x = 34,380,617,196.47
5. Step 5: Solve for x
   x = 34,380,617,196.47/212,650.32
6. Step 6: Final answer
   x = 161,676.77