Finding the Fourth Proportional to 64,945.12, 89,624.16 and 35,137.12

Step by Step Solution

1. Step 1: Write the proportion equation
   64,945.12 : 89,624.16 = 35,137.12 : x
2. Step 2: Convert to fraction form
   64,945.12/89,624.16 = 35,137.12/x
3. Step 3: Cross multiply
   64,945.12x = 89,624.16 × 35,137.12
4. Step 4: Simplify right side
   64,945.12x = 3,149,134,864.82
5. Step 5: Solve for x
   x = 3,149,134,864.82/64,945.12
6. Step 6: Final answer
   x = 48,489.17