Finding the Fourth Proportional to 64,667.63, 89,241.92 and 35,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,667.63 : 89,241.92 = 35,988.50 : x
2. Step 2: Convert to fraction form
   64,667.63/89,241.92 = 35,988.50/x
3. Step 3: Cross multiply
   64,667.63x = 89,241.92 × 35,988.50
4. Step 4: Simplify right side
   64,667.63x = 3,211,683,016.04
5. Step 5: Solve for x
   x = 3,211,683,016.04/64,667.63
6. Step 6: Final answer
   x = 49,664.46