Finding the Fourth Proportional to 79,472.34, 109,623.18 and 47,185.05

Step by Step Solution

1. Step 1: Write the proportion equation
   79,472.34 : 109,623.18 = 47,185.05 : x
2. Step 2: Convert to fraction form
   79,472.34/109,623.18 = 47,185.05/x
3. Step 3: Cross multiply
   79,472.34x = 109,623.18 × 47,185.05
4. Step 4: Simplify right side
   79,472.34x = 5,172,575,229.46
5. Step 5: Solve for x
   x = 5,172,575,229.46/79,472.34
6. Step 6: Final answer
   x = 65,086.48