Finding the Fourth Proportional to 123,342.79, 185,087.99 and 53,222.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,342.79 : 185,087.99 = 53,222.10 : x
2. Step 2: Convert to fraction form
   123,342.79/185,087.99 = 53,222.10/x
3. Step 3: Cross multiply
   123,342.79x = 185,087.99 × 53,222.10
4. Step 4: Simplify right side
   123,342.79x = 9,850,770,321.03
5. Step 5: Solve for x
   x = 9,850,770,321.03/123,342.79
6. Step 6: Final answer
   x = 79,864.99