Finding the Fourth Proportional to 91,947.69, 126,594.50 and 78,464.84

Step by Step Solution

1. Step 1: Write the proportion equation
   91,947.69 : 126,594.50 = 78,464.84 : x
2. Step 2: Convert to fraction form
   91,947.69/126,594.50 = 78,464.84/x
3. Step 3: Cross multiply
   91,947.69x = 126,594.50 × 78,464.84
4. Step 4: Simplify right side
   91,947.69x = 9,933,216,162.08
5. Step 5: Solve for x
   x = 9,933,216,162.08/91,947.69
6. Step 6: Final answer
   x = 108,031.17