Finding the Fourth Proportional to 123,196.91, 170,017.52 and 69,480.81

Step by Step Solution

1. Step 1: Write the proportion equation
   123,196.91 : 170,017.52 = 69,480.81 : x
2. Step 2: Convert to fraction form
   123,196.91/170,017.52 = 69,480.81/x
3. Step 3: Cross multiply
   123,196.91x = 170,017.52 × 69,480.81
4. Step 4: Simplify right side
   123,196.91x = 11,812,954,656.39
5. Step 5: Solve for x
   x = 11,812,954,656.39/123,196.91
6. Step 6: Final answer
   x = 95,886.78