Finding the Fourth Proportional to 86,179.71, 129,269.61 and 27,020.00

Step by Step Solution

1. Step 1: Write the proportion equation
   86,179.71 : 129,269.61 = 27,020.00 : x
2. Step 2: Convert to fraction form
   86,179.71/129,269.61 = 27,020.00/x
3. Step 3: Cross multiply
   86,179.71x = 129,269.61 × 27,020.00
4. Step 4: Simplify right side
   86,179.71x = 3,492,864,080.75
5. Step 5: Solve for x
   x = 3,492,864,080.75/86,179.71
6. Step 6: Final answer
   x = 40,530.01