Finding the Fourth Proportional to 82,918.72, 114,427.88 and 47,108.80

Step by Step Solution

1. Step 1: Write the proportion equation
   82,918.72 : 114,427.88 = 47,108.80 : x
2. Step 2: Convert to fraction form
   82,918.72/114,427.88 = 47,108.80/x
3. Step 3: Cross multiply
   82,918.72x = 114,427.88 × 47,108.80
4. Step 4: Simplify right side
   82,918.72x = 5,390,560,113.34
5. Step 5: Solve for x
   x = 5,390,560,113.34/82,918.72
6. Step 6: Final answer
   x = 65,010.17