Finding the Fourth Proportional to 151,491.38, 209,059.53 and 83,510.79

Step by Step Solution

1. Step 1: Write the proportion equation
   151,491.38 : 209,059.53 = 83,510.79 : x
2. Step 2: Convert to fraction form
   151,491.38/209,059.53 = 83,510.79/x
3. Step 3: Cross multiply
   151,491.38x = 209,059.53 × 83,510.79
4. Step 4: Simplify right side
   151,491.38x = 17,458,726,507.33
5. Step 5: Solve for x
   x = 17,458,726,507.33/151,491.38
6. Step 6: Final answer
   x = 115,245.68