Finding the Fourth Proportional to 65,128.56, 89,875.98 and 36,834.18

Step by Step Solution

1. Step 1: Write the proportion equation
   65,128.56 : 89,875.98 = 36,834.18 : x
2. Step 2: Convert to fraction form
   65,128.56/89,875.98 = 36,834.18/x
3. Step 3: Cross multiply
   65,128.56x = 89,875.98 × 36,834.18
4. Step 4: Simplify right side
   65,128.56x = 3,310,508,025.00
5. Step 5: Solve for x
   x = 3,310,508,025.00/65,128.56
6. Step 6: Final answer
   x = 50,830.36