Finding the Fourth Proportional to 151,780.59, 209,451.79 and 83,796.18

Step by Step Solution

1. Step 1: Write the proportion equation
   151,780.59 : 209,451.79 = 83,796.18 : x
2. Step 2: Convert to fraction form
   151,780.59/209,451.79 = 83,796.18/x
3. Step 3: Cross multiply
   151,780.59x = 209,451.79 × 83,796.18
4. Step 4: Simplify right side
   151,780.59x = 17,551,259,896.16
5. Step 5: Solve for x
   x = 17,551,259,896.16/151,780.59
6. Step 6: Final answer
   x = 115,635.73