Finding the Fourth Proportional to 64,835.69, 89,474.83 and 36,155.07

Step by Step Solution

1. Step 1: Write the proportion equation
   64,835.69 : 89,474.83 = 36,155.07 : x
2. Step 2: Convert to fraction form
   64,835.69/89,474.83 = 36,155.07/x
3. Step 3: Cross multiply
   64,835.69x = 89,474.83 × 36,155.07
4. Step 4: Simplify right side
   64,835.69x = 3,234,968,741.89
5. Step 5: Solve for x
   x = 3,234,968,741.89/64,835.69
6. Step 6: Final answer
   x = 49,894.88