Finding the Fourth Proportional to 105,208, 145,191.36 and 60,496

Step by Step Solution

1. Step 1: Write the proportion equation
   105,208 : 145,191.36 = 60,496 : x
2. Step 2: Convert to fraction form
   105,208/145,191.36 = 60,496/x
3. Step 3: Cross multiply
   105,208x = 145,191.36 × 60,496
4. Step 4: Simplify right side
   105,208x = 8,783,496,514.56
5. Step 5: Solve for x
   x = 8,783,496,514.56/105,208
6. Step 6: Final answer
   x = 83,486.96