Finding the Fourth Proportional to 151,698.58, 209,342.56 and 83,716.18

Step by Step Solution

1. Step 1: Write the proportion equation
   151,698.58 : 209,342.56 = 83,716.18 : x
2. Step 2: Convert to fraction form
   151,698.58/209,342.56 = 83,716.18/x
3. Step 3: Cross multiply
   151,698.58x = 209,342.56 × 83,716.18
4. Step 4: Simplify right side
   151,698.58x = 17,525,359,434.62
5. Step 5: Solve for x
   x = 17,525,359,434.62/151,698.58
6. Step 6: Final answer
   x = 115,527.51