Finding the Fourth Proportional to 86,636.43, 129,959.28 and 27,476.82

Step by Step Solution

1. Step 1: Write the proportion equation
   86,636.43 : 129,959.28 = 27,476.82 : x
2. Step 2: Convert to fraction form
   86,636.43/129,959.28 = 27,476.82/x
3. Step 3: Cross multiply
   86,636.43x = 129,959.28 × 27,476.82
4. Step 4: Simplify right side
   86,636.43x = 3,570,867,743.89
5. Step 5: Solve for x
   x = 3,570,867,743.89/86,636.43
6. Step 6: Final answer
   x = 41,216.70