Finding the Fourth Proportional to 65,003.64, 89,732.64 and 39,518.14

Step by Step Solution

1. Step 1: Write the proportion equation
   65,003.64 : 89,732.64 = 39,518.14 : x
2. Step 2: Convert to fraction form
   65,003.64/89,732.64 = 39,518.14/x
3. Step 3: Cross multiply
   65,003.64x = 89,732.64 × 39,518.14
4. Step 4: Simplify right side
   65,003.64x = 3,546,066,968.69
5. Step 5: Solve for x
   x = 3,546,066,968.69/65,003.64
6. Step 6: Final answer
   x = 54,551.82