Finding the Fourth Proportional to 65,162.64, 89,998.11 and 43,905

Step by Step Solution

1. Step 1: Write the proportion equation
   65,162.64 : 89,998.11 = 43,905 : x
2. Step 2: Convert to fraction form
   65,162.64/89,998.11 = 43,905/x
3. Step 3: Cross multiply
   65,162.64x = 89,998.11 × 43,905
4. Step 4: Simplify right side
   65,162.64x = 3,951,367,019.55
5. Step 5: Solve for x
   x = 3,951,367,019.55/65,162.64
6. Step 6: Final answer
   x = 60,638.53