Finding the Fourth Proportional to 82,521.22, 113,871.41 and 65,566.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,521.22 : 113,871.41 = 65,566.50 : x
2. Step 2: Convert to fraction form
   82,521.22/113,871.41 = 65,566.50/x
3. Step 3: Cross multiply
   82,521.22x = 113,871.41 × 65,566.50
4. Step 4: Simplify right side
   82,521.22x = 7,466,149,803.77
5. Step 5: Solve for x
   x = 7,466,149,803.77/82,521.22
6. Step 6: Final answer
   x = 90,475.51