Finding the Fourth Proportional to 123,583.05, 170,454.42 and 78,268.41

Step by Step Solution

1. Step 1: Write the proportion equation
   123,583.05 : 170,454.42 = 78,268.41 : x
2. Step 2: Convert to fraction form
   123,583.05/170,454.42 = 78,268.41/x
3. Step 3: Cross multiply
   123,583.05x = 170,454.42 × 78,268.41
4. Step 4: Simplify right side
   123,583.05x = 13,341,196,430.87
5. Step 5: Solve for x
   x = 13,341,196,430.87/123,583.05
6. Step 6: Final answer
   x = 107,953.29