Finding the Fourth Proportional to 195,040, 269,155.20 and 105,616

Step by Step Solution

1. Step 1: Write the proportion equation
   195,040 : 269,155.20 = 105,616 : x
2. Step 2: Convert to fraction form
   195,040/269,155.20 = 105,616/x
3. Step 3: Cross multiply
   195,040x = 269,155.20 × 105,616
4. Step 4: Simplify right side
   195,040x = 28,427,095,603.20
5. Step 5: Solve for x
   x = 28,427,095,603.20/195,040
6. Step 6: Final answer
   x = 145,750.08