Finding the Fourth Proportional to 65,137.50, 89,889.78 and 36,842.58

Step by Step Solution

1. Step 1: Write the proportion equation
   65,137.50 : 89,889.78 = 36,842.58 : x
2. Step 2: Convert to fraction form
   65,137.50/89,889.78 = 36,842.58/x
3. Step 3: Cross multiply
   65,137.50x = 89,889.78 × 36,842.58
4. Step 4: Simplify right side
   65,137.50x = 3,311,771,410.83
5. Step 5: Solve for x
   x = 3,311,771,410.83/65,137.50
6. Step 6: Final answer
   x = 50,842.78