Finding the Fourth Proportional to 82,320, 123,322.20 and 48,939

Step by Step Solution

1. Step 1: Write the proportion equation
   82,320 : 123,322.20 = 48,939 : x
2. Step 2: Convert to fraction form
   82,320/123,322.20 = 48,939/x
3. Step 3: Cross multiply
   82,320x = 123,322.20 × 48,939
4. Step 4: Simplify right side
   82,320x = 6,035,265,145.80
5. Step 5: Solve for x
   x = 6,035,265,145.80/82,320
6. Step 6: Final answer
   x = 73,314.69