Finding the Fourth Proportional to 274,217.76, 411,300.72 and 87,196.32

Step by Step Solution

1. Step 1: Write the proportion equation
   274,217.76 : 411,300.72 = 87,196.32 : x
2. Step 2: Convert to fraction form
   274,217.76/411,300.72 = 87,196.32/x
3. Step 3: Cross multiply
   274,217.76x = 411,300.72 × 87,196.32
4. Step 4: Simplify right side
   274,217.76x = 35,863,909,197.35
5. Step 5: Solve for x
   x = 35,863,909,197.35/274,217.76
6. Step 6: Final answer
   x = 130,786.24