Finding the Fourth Proportional to 64,919.16, 89,588.70 and 35,111.16

Step by Step Solution

1. Step 1: Write the proportion equation
   64,919.16 : 89,588.70 = 35,111.16 : x
2. Step 2: Convert to fraction form
   64,919.16/89,588.70 = 35,111.16/x
3. Step 3: Cross multiply
   64,919.16x = 89,588.70 × 35,111.16
4. Step 4: Simplify right side
   64,919.16x = 3,145,563,179.89
5. Step 5: Solve for x
   x = 3,145,563,179.89/64,919.16
6. Step 6: Final answer
   x = 48,453.54