Finding the Fourth Proportional to 115,162.61, 158,870.07 and 67,386.38

Step by Step Solution

1. Step 1: Write the proportion equation
   115,162.61 : 158,870.07 = 67,386.38 : x
2. Step 2: Convert to fraction form
   115,162.61/158,870.07 = 67,386.38/x
3. Step 3: Cross multiply
   115,162.61x = 158,870.07 × 67,386.38
4. Step 4: Simplify right side
   115,162.61x = 10,705,678,113.30
5. Step 5: Solve for x
   x = 10,705,678,113.30/115,162.61
6. Step 6: Final answer
   x = 92,961.41