Finding the Fourth Proportional to 79,401.45, 109,552.69 and 47,109.21

Step by Step Solution

1. Step 1: Write the proportion equation
   79,401.45 : 109,552.69 = 47,109.21 : x
2. Step 2: Convert to fraction form
   79,401.45/109,552.69 = 47,109.21/x
3. Step 3: Cross multiply
   79,401.45x = 109,552.69 × 47,109.21
4. Step 4: Simplify right side
   79,401.45x = 5,160,940,678.58
5. Step 5: Solve for x
   x = 5,160,940,678.58/79,401.45
6. Step 6: Final answer
   x = 64,998.07