Finding the Fourth Proportional to 82,111.04, 122,859 and 58,473.20

Step by Step Solution

1. Step 1: Write the proportion equation
   82,111.04 : 122,859 = 58,473.20 : x
2. Step 2: Convert to fraction form
   82,111.04/122,859 = 58,473.20/x
3. Step 3: Cross multiply
   82,111.04x = 122,859 × 58,473.20
4. Step 4: Simplify right side
   82,111.04x = 7,183,958,878.80
5. Step 5: Solve for x
   x = 7,183,958,878.80/82,111.04
6. Step 6: Final answer
   x = 87,490.78