Finding the Fourth Proportional to 82,432.45, 113,632.77 and 64,496.31

Step by Step Solution

1. Step 1: Write the proportion equation
   82,432.45 : 113,632.77 = 64,496.31 : x
2. Step 2: Convert to fraction form
   82,432.45/113,632.77 = 64,496.31/x
3. Step 3: Cross multiply
   82,432.45x = 113,632.77 × 64,496.31
4. Step 4: Simplify right side
   82,432.45x = 7,328,894,360.08
5. Step 5: Solve for x
   x = 7,328,894,360.08/82,432.45
6. Step 6: Final answer
   x = 88,907.88