Finding the Fourth Proportional to 150,655.58, 207,917.61 and 82,685.69

Step by Step Solution

1. Step 1: Write the proportion equation
   150,655.58 : 207,917.61 = 82,685.69 : x
2. Step 2: Convert to fraction form
   150,655.58/207,917.61 = 82,685.69/x
3. Step 3: Cross multiply
   150,655.58x = 207,917.61 × 82,685.69
4. Step 4: Simplify right side
   150,655.58x = 17,191,810,006.41
5. Step 5: Solve for x
   x = 17,191,810,006.41/150,655.58
6. Step 6: Final answer
   x = 114,113.33