Finding the Fourth Proportional to 64,667.36, 89,243.88 and 36,373.05

Step by Step Solution

1. Step 1: Write the proportion equation
   64,667.36 : 89,243.88 = 36,373.05 : x
2. Step 2: Convert to fraction form
   64,667.36/89,243.88 = 36,373.05/x
3. Step 3: Cross multiply
   64,667.36x = 89,243.88 × 36,373.05
4. Step 4: Simplify right side
   64,667.36x = 3,246,072,109.43
5. Step 5: Solve for x
   x = 3,246,072,109.43/64,667.36
6. Step 6: Final answer
   x = 50,196.45