Finding the Fourth Proportional to 82,317.52, 123,346.56 and 63,643.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,317.52 : 123,346.56 = 63,643.28 : x
2. Step 2: Convert to fraction form
   82,317.52/123,346.56 = 63,643.28/x
3. Step 3: Cross multiply
   82,317.52x = 123,346.56 × 63,643.28
4. Step 4: Simplify right side
   82,317.52x = 7,850,179,655.12
5. Step 5: Solve for x
   x = 7,850,179,655.12/82,317.52
6. Step 6: Final answer
   x = 95,364.63