Finding the Fourth Proportional to 91,128.98, 136,697.61 and 27,944.48

Step by Step Solution

1. Step 1: Write the proportion equation
   91,128.98 : 136,697.61 = 27,944.48 : x
2. Step 2: Convert to fraction form
   91,128.98/136,697.61 = 27,944.48/x
3. Step 3: Cross multiply
   91,128.98x = 136,697.61 × 27,944.48
4. Step 4: Simplify right side
   91,128.98x = 3,819,943,628.69
5. Step 5: Solve for x
   x = 3,819,943,628.69/91,128.98
6. Step 6: Final answer
   x = 41,917.99