Finding the Fourth Proportional to 72,398.52, 108,102.58 and 64,853.37

Step by Step Solution

1. Step 1: Write the proportion equation
   72,398.52 : 108,102.58 = 64,853.37 : x
2. Step 2: Convert to fraction form
   72,398.52/108,102.58 = 64,853.37/x
3. Step 3: Cross multiply
   72,398.52x = 108,102.58 × 64,853.37
4. Step 4: Simplify right side
   72,398.52x = 7,010,816,456.56
5. Step 5: Solve for x
   x = 7,010,816,456.56/72,398.52
6. Step 6: Final answer
   x = 96,836.46