Finding the Fourth Proportional to 123,448.86, 170,296.83 and 78,050.39

Step by Step Solution

1. Step 1: Write the proportion equation
   123,448.86 : 170,296.83 = 78,050.39 : x
2. Step 2: Convert to fraction form
   123,448.86/170,296.83 = 78,050.39/x
3. Step 3: Cross multiply
   123,448.86x = 170,296.83 × 78,050.39
4. Step 4: Simplify right side
   123,448.86x = 13,291,733,145.78
5. Step 5: Solve for x
   x = 13,291,733,145.78/123,448.86
6. Step 6: Final answer
   x = 107,669.95