Finding the Fourth Proportional to 71,395.98, 107,108.94 and 21,479.72

Step by Step Solution

1. Step 1: Write the proportion equation
   71,395.98 : 107,108.94 = 21,479.72 : x
2. Step 2: Convert to fraction form
   71,395.98/107,108.94 = 21,479.72/x
3. Step 3: Cross multiply
   71,395.98x = 107,108.94 × 21,479.72
4. Step 4: Simplify right side
   71,395.98x = 2,300,670,040.70
5. Step 5: Solve for x
   x = 2,300,670,040.70/71,395.98
6. Step 6: Final answer
   x = 32,224.08