Finding the Fourth Proportional to 105,123, 157,707.54 and 39,459

Step by Step Solution

1. Step 1: Write the proportion equation
   105,123 : 157,707.54 = 39,459 : x
2. Step 2: Convert to fraction form
   105,123/157,707.54 = 39,459/x
3. Step 3: Cross multiply
   105,123x = 157,707.54 × 39,459
4. Step 4: Simplify right side
   105,123x = 6,222,981,820.86
5. Step 5: Solve for x
   x = 6,222,981,820.86/105,123
6. Step 6: Final answer
   x = 59,197.15