Finding the Fourth Proportional to 81,106.79, 111,919.67 and 47,114.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,106.79 : 111,919.67 = 47,114.34 : x
2. Step 2: Convert to fraction form
   81,106.79/111,919.67 = 47,114.34/x
3. Step 3: Cross multiply
   81,106.79x = 111,919.67 × 47,114.34
4. Step 4: Simplify right side
   81,106.79x = 5,273,021,149.50
5. Step 5: Solve for x
   x = 5,273,021,149.50/81,106.79
6. Step 6: Final answer
   x = 65,013.32