Finding the Fourth Proportional to 201,615.57, 278,227.33 and 110,969.59

Step by Step Solution

1. Step 1: Write the proportion equation
   201,615.57 : 278,227.33 = 110,969.59 : x
2. Step 2: Convert to fraction form
   201,615.57/278,227.33 = 110,969.59/x
3. Step 3: Cross multiply
   201,615.57x = 278,227.33 × 110,969.59
4. Step 4: Simplify right side
   201,615.57x = 30,874,772,736.89
5. Step 5: Solve for x
   x = 30,874,772,736.89/201,615.57
6. Step 6: Final answer
   x = 153,136.85