Finding the Fourth Proportional to 105,578.82, 145,700.37 and 57,832.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,578.82 : 145,700.37 = 57,832.02 : x
2. Step 2: Convert to fraction form
   105,578.82/145,700.37 = 57,832.02/x
3. Step 3: Cross multiply
   105,578.82x = 145,700.37 × 57,832.02
4. Step 4: Simplify right side
   105,578.82x = 8,426,146,711.85
5. Step 5: Solve for x
   x = 8,426,146,711.85/105,578.82
6. Step 6: Final answer
   x = 79,809.06