Finding the Fourth Proportional to 315,667.94, 473,571.87 and 91,010.84

Step by Step Solution

1. Step 1: Write the proportion equation
   315,667.94 : 473,571.87 = 91,010.84 : x
2. Step 2: Convert to fraction form
   315,667.94/473,571.87 = 91,010.84/x
3. Step 3: Cross multiply
   315,667.94x = 473,571.87 × 91,010.84
4. Step 4: Simplify right side
   315,667.94x = 43,100,170,979.92
5. Step 5: Solve for x
   x = 43,100,170,979.92/315,667.94
6. Step 6: Final answer
   x = 136,536.42