Finding the Fourth Proportional to 123,785, 170,823.60 and 67,196.36

Step by Step Solution

1. Step 1: Write the proportion equation
   123,785 : 170,823.60 = 67,196.36 : x
2. Step 2: Convert to fraction form
   123,785/170,823.60 = 67,196.36/x
3. Step 3: Cross multiply
   123,785x = 170,823.60 × 67,196.36
4. Step 4: Simplify right side
   123,785x = 11,478,724,122.10
5. Step 5: Solve for x
   x = 11,478,724,122.10/123,785
6. Step 6: Final answer
   x = 92,731.14