Finding the Fourth Proportional to 91,738.17, 126,848.43 and 79,928.37

Step by Step Solution

1. Step 1: Write the proportion equation
   91,738.17 : 126,848.43 = 79,928.37 : x
2. Step 2: Convert to fraction form
   91,738.17/126,848.43 = 79,928.37/x
3. Step 3: Cross multiply
   91,738.17x = 126,848.43 × 79,928.37
4. Step 4: Simplify right side
   91,738.17x = 10,138,788,246.96
5. Step 5: Solve for x
   x = 10,138,788,246.96/91,738.17
6. Step 6: Final answer
   x = 110,518.75