Finding the Fourth Proportional to 123,762.18, 170,789.67 and 67,172.34

Step by Step Solution

1. Step 1: Write the proportion equation
   123,762.18 : 170,789.67 = 67,172.34 : x
2. Step 2: Convert to fraction form
   123,762.18/170,789.67 = 67,172.34/x
3. Step 3: Cross multiply
   123,762.18x = 170,789.67 × 67,172.34
4. Step 4: Simplify right side
   123,762.18x = 11,472,341,781.73
5. Step 5: Solve for x
   x = 11,472,341,781.73/123,762.18
6. Step 6: Final answer
   x = 92,696.67