Finding the Fourth Proportional to 123,715.73, 170,729.69 and 67,127.10

Step by Step Solution

1. Step 1: Write the proportion equation
   123,715.73 : 170,729.69 = 67,127.10 : x
2. Step 2: Convert to fraction form
   123,715.73/170,729.69 = 67,127.10/x
3. Step 3: Cross multiply
   123,715.73x = 170,729.69 × 67,127.10
4. Step 4: Simplify right side
   123,715.73x = 11,460,588,637.96
5. Step 5: Solve for x
   x = 11,460,588,637.96/123,715.73
6. Step 6: Final answer
   x = 92,636.47