Finding the Fourth Proportional to 72,838, 109,249.68 and 53,155

Step by Step Solution

1. Step 1: Write the proportion equation
   72,838 : 109,249.68 = 53,155 : x
2. Step 2: Convert to fraction form
   72,838/109,249.68 = 53,155/x
3. Step 3: Cross multiply
   72,838x = 109,249.68 × 53,155
4. Step 4: Simplify right side
   72,838x = 5,807,166,740.40
5. Step 5: Solve for x
   x = 5,807,166,740.40/72,838
6. Step 6: Final answer
   x = 79,727.16