Finding the Fourth Proportional to 82,913.80, 114,421.42 and 47,105.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,913.80 : 114,421.42 = 47,105.78 : x
2. Step 2: Convert to fraction form
   82,913.80/114,421.42 = 47,105.78/x
3. Step 3: Cross multiply
   82,913.80x = 114,421.42 × 47,105.78
4. Step 4: Simplify right side
   82,913.80x = 5,389,909,547.94
5. Step 5: Solve for x
   x = 5,389,909,547.94/82,913.80
6. Step 6: Final answer
   x = 65,006.18