Finding the Fourth Proportional to 79,469.35, 109,662.71 and 73,121.59

Step by Step Solution

1. Step 1: Write the proportion equation
   79,469.35 : 109,662.71 = 73,121.59 : x
2. Step 2: Convert to fraction form
   79,469.35/109,662.71 = 73,121.59/x
3. Step 3: Cross multiply
   79,469.35x = 109,662.71 × 73,121.59
4. Step 4: Simplify right side
   79,469.35x = 8,018,711,284.84
5. Step 5: Solve for x
   x = 8,018,711,284.84/79,469.35
6. Step 6: Final answer
   x = 100,903.19