Finding the Fourth Proportional to 123,855.93, 185,758.29 and 78,249.83

Step by Step Solution

1. Step 1: Write the proportion equation
   123,855.93 : 185,758.29 = 78,249.83 : x
2. Step 2: Convert to fraction form
   123,855.93/185,758.29 = 78,249.83/x
3. Step 3: Cross multiply
   123,855.93x = 185,758.29 × 78,249.83
4. Step 4: Simplify right side
   123,855.93x = 14,535,553,684.80
5. Step 5: Solve for x
   x = 14,535,553,684.80/123,855.93
6. Step 6: Final answer
   x = 117,358.56