Finding the Fourth Proportional to 212,789.65, 293,649.57 and 115,993.69

Step by Step Solution

1. Step 1: Write the proportion equation
   212,789.65 : 293,649.57 = 115,993.69 : x
2. Step 2: Convert to fraction form
   212,789.65/293,649.57 = 115,993.69/x
3. Step 3: Cross multiply
   212,789.65x = 293,649.57 × 115,993.69
4. Step 4: Simplify right side
   212,789.65x = 34,061,496,012.95
5. Step 5: Solve for x
   x = 34,061,496,012.95/212,789.65
6. Step 6: Final answer
   x = 160,071.21