Finding the Fourth Proportional to 154,517.34, 213,255.54 and 111,635.62

Step by Step Solution

1. Step 1: Write the proportion equation
   154,517.34 : 213,255.54 = 111,635.62 : x
2. Step 2: Convert to fraction form
   154,517.34/213,255.54 = 111,635.62/x
3. Step 3: Cross multiply
   154,517.34x = 213,255.54 × 111,635.62
4. Step 4: Simplify right side
   154,517.34x = 23,806,914,426.33
5. Step 5: Solve for x
   x = 23,806,914,426.33/154,517.34
6. Step 6: Final answer
   x = 154,072.77