Finding the Fourth Proportional to 123,996.76, 171,116.72 and 67,409.36

Step by Step Solution

1. Step 1: Write the proportion equation
   123,996.76 : 171,116.72 = 67,409.36 : x
2. Step 2: Convert to fraction form
   123,996.76/171,116.72 = 67,409.36/x
3. Step 3: Cross multiply
   123,996.76x = 171,116.72 × 67,409.36
4. Step 4: Simplify right side
   123,996.76x = 11,534,868,580.50
5. Step 5: Solve for x
   x = 11,534,868,580.50/123,996.76
6. Step 6: Final answer
   x = 93,025.56