Finding the Fourth Proportional to 105,333.02, 145,359.56 and 57,586.36

Step by Step Solution

1. Step 1: Write the proportion equation
   105,333.02 : 145,359.56 = 57,586.36 : x
2. Step 2: Convert to fraction form
   105,333.02/145,359.56 = 57,586.36/x
3. Step 3: Cross multiply
   105,333.02x = 145,359.56 × 57,586.36
4. Step 4: Simplify right side
   105,333.02x = 8,370,728,004.72
5. Step 5: Solve for x
   x = 8,370,728,004.72/105,333.02
6. Step 6: Final answer
   x = 79,469.17