Finding the Fourth Proportional to 106,057.49, 146,359.82 and 57,659.89

Step by Step Solution

1. Step 1: Write the proportion equation
   106,057.49 : 146,359.82 = 57,659.89 : x
2. Step 2: Convert to fraction form
   106,057.49/146,359.82 = 57,659.89/x
3. Step 3: Cross multiply
   106,057.49x = 146,359.82 × 57,659.89
4. Step 4: Simplify right side
   106,057.49x = 8,439,090,101.52
5. Step 5: Solve for x
   x = 8,439,090,101.52/106,057.49
6. Step 6: Final answer
   x = 79,570.90