Finding the Fourth Proportional to 82,520.10, 123,784.20 and 43,154.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,520.10 : 123,784.20 = 43,154.10 : x
2. Step 2: Convert to fraction form
   82,520.10/123,784.20 = 43,154.10/x
3. Step 3: Cross multiply
   82,520.10x = 123,784.20 × 43,154.10
4. Step 4: Simplify right side
   82,520.10x = 5,341,795,745.22
5. Step 5: Solve for x
   x = 5,341,795,745.22/82,520.10
6. Step 6: Final answer
   x = 64,733.27