Finding the Fourth Proportional to 82,390.32, 123,489.92 and 37,923.68

Step by Step Solution

1. Step 1: Write the proportion equation
   82,390.32 : 123,489.92 = 37,923.68 : x
2. Step 2: Convert to fraction form
   82,390.32/123,489.92 = 37,923.68/x
3. Step 3: Cross multiply
   82,390.32x = 123,489.92 × 37,923.68
4. Step 4: Simplify right side
   82,390.32x = 4,683,192,209.31
5. Step 5: Solve for x
   x = 4,683,192,209.31/82,390.32
6. Step 6: Final answer
   x = 56,841.53