Finding the Fourth Proportional to 339,104.18, 508,632.78 and 102,448.10

Step by Step Solution

1. Step 1: Write the proportion equation
   339,104.18 : 508,632.78 = 102,448.10 : x
2. Step 2: Convert to fraction form
   339,104.18/508,632.78 = 102,448.10/x
3. Step 3: Cross multiply
   339,104.18x = 508,632.78 × 102,448.10
4. Step 4: Simplify right side
   339,104.18x = 52,108,461,908.72
5. Step 5: Solve for x
   x = 52,108,461,908.72/339,104.18
6. Step 6: Final answer
   x = 153,665.05