Finding the Fourth Proportional to 82,556.16, 113,885.76 and 52,290.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,556.16 : 113,885.76 = 52,290.72 : x
2. Step 2: Convert to fraction form
   82,556.16/113,885.76 = 52,290.72/x
3. Step 3: Cross multiply
   82,556.16x = 113,885.76 × 52,290.72
4. Step 4: Simplify right side
   82,556.16x = 5,955,168,388.15
5. Step 5: Solve for x
   x = 5,955,168,388.15/82,556.16
6. Step 6: Final answer
   x = 72,134.76