Finding the Fourth Proportional to 82,913.69, 124,281.86 and 42,892.39

Step by Step Solution

1. Step 1: Write the proportion equation
   82,913.69 : 124,281.86 = 42,892.39 : x
2. Step 2: Convert to fraction form
   82,913.69/124,281.86 = 42,892.39/x
3. Step 3: Cross multiply
   82,913.69x = 124,281.86 × 42,892.39
4. Step 4: Simplify right side
   82,913.69x = 5,330,745,949.94
5. Step 5: Solve for x
   x = 5,330,745,949.94/82,913.69
6. Step 6: Final answer
   x = 64,292.71