Finding the Fourth Proportional to 123,544.01, 170,574.42 and 78,262.17

Step by Step Solution

1. Step 1: Write the proportion equation
   123,544.01 : 170,574.42 = 78,262.17 : x
2. Step 2: Convert to fraction form
   123,544.01/170,574.42 = 78,262.17/x
3. Step 3: Cross multiply
   123,544.01x = 170,574.42 × 78,262.17
4. Step 4: Simplify right side
   123,544.01x = 13,349,523,864.38
5. Step 5: Solve for x
   x = 13,349,523,864.38/123,544.01
6. Step 6: Final answer
   x = 108,054.81