Finding the Fourth Proportional to 105,477.54, 145,559.34 and 57,733.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,477.54 : 145,559.34 = 57,733.98 : x
2. Step 2: Convert to fraction form
   105,477.54/145,559.34 = 57,733.98/x
3. Step 3: Cross multiply
   105,477.54x = 145,559.34 × 57,733.98
4. Step 4: Simplify right side
   105,477.54x = 8,403,720,024.37
5. Step 5: Solve for x
   x = 8,403,720,024.37/105,477.54
6. Step 6: Final answer
   x = 79,673.08