Finding the Fourth Proportional to 72,647.46, 108,935.64 and 43,057.34

Step by Step Solution

1. Step 1: Write the proportion equation
   72,647.46 : 108,935.64 = 43,057.34 : x
2. Step 2: Convert to fraction form
   72,647.46/108,935.64 = 43,057.34/x
3. Step 3: Cross multiply
   72,647.46x = 108,935.64 × 43,057.34
4. Step 4: Simplify right side
   72,647.46x = 4,690,478,889.60
5. Step 5: Solve for x
   x = 4,690,478,889.60/72,647.46
6. Step 6: Final answer
   x = 64,564.94