Finding the Fourth Proportional to 212,587.72, 293,367.52 and 117,103.30

Step by Step Solution

1. Step 1: Write the proportion equation
   212,587.72 : 293,367.52 = 117,103.30 : x
2. Step 2: Convert to fraction form
   212,587.72/293,367.52 = 117,103.30/x
3. Step 3: Cross multiply
   212,587.72x = 293,367.52 × 117,103.30
4. Step 4: Simplify right side
   212,587.72x = 34,354,304,704.82
5. Step 5: Solve for x
   x = 34,354,304,704.82/212,587.72
6. Step 6: Final answer
   x = 161,600.61