Finding the Fourth Proportional to 105,945.37, 158,932.79 and 56,028.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,945.37 : 158,932.79 = 56,028.98 : x
2. Step 2: Convert to fraction form
   105,945.37/158,932.79 = 56,028.98/x
3. Step 3: Cross multiply
   105,945.37x = 158,932.79 × 56,028.98
4. Step 4: Simplify right side
   105,945.37x = 8,904,841,482.85
5. Step 5: Solve for x
   x = 8,904,841,482.85/105,945.37
6. Step 6: Final answer
   x = 84,051.26