Finding the Fourth Proportional to 105,541.54, 145,647.24 and 57,795.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,541.54 : 145,647.24 = 57,795.82 : x
2. Step 2: Convert to fraction form
   105,541.54/145,647.24 = 57,795.82/x
3. Step 3: Cross multiply
   105,541.54x = 145,647.24 × 57,795.82
4. Step 4: Simplify right side
   105,541.54x = 8,417,801,666.54
5. Step 5: Solve for x
   x = 8,417,801,666.54/105,541.54
6. Step 6: Final answer
   x = 79,758.18