Finding the Fourth Proportional to 85,105.64, 127,573.98 and 43,459.56

Step by Step Solution

1. Step 1: Write the proportion equation
   85,105.64 : 127,573.98 = 43,459.56 : x
2. Step 2: Convert to fraction form
   85,105.64/127,573.98 = 43,459.56/x
3. Step 3: Cross multiply
   85,105.64x = 127,573.98 × 43,459.56
4. Step 4: Simplify right side
   85,105.64x = 5,544,309,038.25
5. Step 5: Solve for x
   x = 5,544,309,038.25/85,105.64
6. Step 6: Final answer
   x = 65,146.20