Finding the Fourth Proportional to 82,570.86, 123,817.95 and 40,453.02

Step by Step Solution

1. Step 1: Write the proportion equation
   82,570.86 : 123,817.95 = 40,453.02 : x
2. Step 2: Convert to fraction form
   82,570.86/123,817.95 = 40,453.02/x
3. Step 3: Cross multiply
   82,570.86x = 123,817.95 × 40,453.02
4. Step 4: Simplify right side
   82,570.86x = 5,008,810,007.71
5. Step 5: Solve for x
   x = 5,008,810,007.71/82,570.86
6. Step 6: Final answer
   x = 60,660.75