Finding the Fourth Proportional to 123,315.18, 185,037.57 and 67,195.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,315.18 : 185,037.57 = 67,195.50 : x
2. Step 2: Convert to fraction form
   123,315.18/185,037.57 = 67,195.50/x
3. Step 3: Cross multiply
   123,315.18x = 185,037.57 × 67,195.50
4. Step 4: Simplify right side
   123,315.18x = 12,433,692,034.94
5. Step 5: Solve for x
   x = 12,433,692,034.94/123,315.18
6. Step 6: Final answer
   x = 100,828.56