Finding the Fourth Proportional to 123,141.83, 169,998.23 and 77,866.25

Step by Step Solution

1. Step 1: Write the proportion equation
   123,141.83 : 169,998.23 = 77,866.25 : x
2. Step 2: Convert to fraction form
   123,141.83/169,998.23 = 77,866.25/x
3. Step 3: Cross multiply
   123,141.83x = 169,998.23 × 77,866.25
4. Step 4: Simplify right side
   123,141.83x = 13,237,124,021.41
5. Step 5: Solve for x
   x = 13,237,124,021.41/123,141.83
6. Step 6: Final answer
   x = 107,494.95