Finding the Fourth Proportional to 72,235.31, 99,663.98 and 41,602.73

Step by Step Solution

1. Step 1: Write the proportion equation
   72,235.31 : 99,663.98 = 41,602.73 : x
2. Step 2: Convert to fraction form
   72,235.31/99,663.98 = 41,602.73/x
3. Step 3: Cross multiply
   72,235.31x = 99,663.98 × 41,602.73
4. Step 4: Simplify right side
   72,235.31x = 4,146,292,944.33
5. Step 5: Solve for x
   x = 4,146,292,944.33/72,235.31
6. Step 6: Final answer
   x = 57,399.81