Finding the Fourth Proportional to 194,939, 269,016.63 and 105,515

Step by Step Solution

1. Step 1: Write the proportion equation
   194,939 : 269,016.63 = 105,515 : x
2. Step 2: Convert to fraction form
   194,939/269,016.63 = 105,515/x
3. Step 3: Cross multiply
   194,939x = 269,016.63 × 105,515
4. Step 4: Simplify right side
   194,939x = 28,385,289,714.45
5. Step 5: Solve for x
   x = 28,385,289,714.45/194,939
6. Step 6: Final answer
   x = 145,611.14