Finding the Fourth Proportional to 123,998.52, 171,111.42 and 67,409.64

Step by Step Solution

1. Step 1: Write the proportion equation
   123,998.52 : 171,111.42 = 67,409.64 : x
2. Step 2: Convert to fraction form
   123,998.52/171,111.42 = 67,409.64/x
3. Step 3: Cross multiply
   123,998.52x = 171,111.42 × 67,409.64
4. Step 4: Simplify right side
   123,998.52x = 11,534,559,222.09
5. Step 5: Solve for x
   x = 11,534,559,222.09/123,998.52
6. Step 6: Final answer
   x = 93,021.75