Finding the Fourth Proportional to 151,760.76, 209,428.56 and 83,776.27

Step by Step Solution

1. Step 1: Write the proportion equation
   151,760.76 : 209,428.56 = 83,776.27 : x
2. Step 2: Convert to fraction form
   151,760.76/209,428.56 = 83,776.27/x
3. Step 3: Cross multiply
   151,760.76x = 209,428.56 × 83,776.27
4. Step 4: Simplify right side
   151,760.76x = 17,545,143,850.06
5. Step 5: Solve for x
   x = 17,545,143,850.06/151,760.76
6. Step 6: Final answer
   x = 115,610.55