Finding the Fourth Proportional to 64,910.88, 89,564.88 and 36,617.76

Step by Step Solution

1. Step 1: Write the proportion equation
   64,910.88 : 89,564.88 = 36,617.76 : x
2. Step 2: Convert to fraction form
   64,910.88/89,564.88 = 36,617.76/x
3. Step 3: Cross multiply
   64,910.88x = 89,564.88 × 36,617.76
4. Step 4: Simplify right side
   64,910.88x = 3,279,665,280.27
5. Step 5: Solve for x
   x = 3,279,665,280.27/64,910.88
6. Step 6: Final answer
   x = 50,525.66