Finding the Fourth Proportional to 71,815.01, 107,729.89 and 27,479.05

Step by Step Solution

1. Step 1: Write the proportion equation
   71,815.01 : 107,729.89 = 27,479.05 : x
2. Step 2: Convert to fraction form
   71,815.01/107,729.89 = 27,479.05/x
3. Step 3: Cross multiply
   71,815.01x = 107,729.89 × 27,479.05
4. Step 4: Simplify right side
   71,815.01x = 2,960,315,099.77
5. Step 5: Solve for x
   x = 2,960,315,099.77/71,815.01
6. Step 6: Final answer
   x = 41,221.40