Finding the Fourth Proportional to 91,667.73, 126,264.85 and 64,763.54

Step by Step Solution

1. Step 1: Write the proportion equation
   91,667.73 : 126,264.85 = 64,763.54 : x
2. Step 2: Convert to fraction form
   91,667.73/126,264.85 = 64,763.54/x
3. Step 3: Cross multiply
   91,667.73x = 126,264.85 × 64,763.54
4. Step 4: Simplify right side
   91,667.73x = 8,177,357,870.34
5. Step 5: Solve for x
   x = 8,177,357,870.34/91,667.73
6. Step 6: Final answer
   x = 89,206.51