Finding the Fourth Proportional to 151,658.40, 209,288.01 and 83,679.62

Step by Step Solution

1. Step 1: Write the proportion equation
   151,658.40 : 209,288.01 = 83,679.62 : x
2. Step 2: Convert to fraction form
   151,658.40/209,288.01 = 83,679.62/x
3. Step 3: Cross multiply
   151,658.40x = 209,288.01 × 83,679.62
4. Step 4: Simplify right side
   151,658.40x = 17,513,140,100.92
5. Step 5: Solve for x
   x = 17,513,140,100.92/151,658.40
6. Step 6: Final answer
   x = 115,477.55