Finding the Fourth Proportional to 115,173.65, 158,945.06 and 67,442.38

Step by Step Solution

1. Step 1: Write the proportion equation
   115,173.65 : 158,945.06 = 67,442.38 : x
2. Step 2: Convert to fraction form
   115,173.65/158,945.06 = 67,442.38/x
3. Step 3: Cross multiply
   115,173.65x = 158,945.06 × 67,442.38
4. Step 4: Simplify right side
   115,173.65x = 10,719,632,003.71
5. Step 5: Solve for x
   x = 10,719,632,003.71/115,173.65
6. Step 6: Final answer
   x = 93,073.65