Finding the Fourth Proportional to 65,036.68, 89,748.76 and 36,356.40

Step by Step Solution

1. Step 1: Write the proportion equation
   65,036.68 : 89,748.76 = 36,356.40 : x
2. Step 2: Convert to fraction form
   65,036.68/89,748.76 = 36,356.40/x
3. Step 3: Cross multiply
   65,036.68x = 89,748.76 × 36,356.40
4. Step 4: Simplify right side
   65,036.68x = 3,262,941,818.06
5. Step 5: Solve for x
   x = 3,262,941,818.06/65,036.68
6. Step 6: Final answer
   x = 50,170.79