Finding the Fourth Proportional to 79,218.10, 109,310.61 and 47,375.38

Step by Step Solution

1. Step 1: Write the proportion equation
   79,218.10 : 109,310.61 = 47,375.38 : x
2. Step 2: Convert to fraction form
   79,218.10/109,310.61 = 47,375.38/x
3. Step 3: Cross multiply
   79,218.10x = 109,310.61 × 47,375.38
4. Step 4: Simplify right side
   79,218.10x = 5,178,631,686.78
5. Step 5: Solve for x
   x = 5,178,631,686.78/79,218.10
6. Step 6: Final answer
   x = 65,371.82