Finding the Fourth Proportional to 72,271.68, 99,723 and 45,395.04

Step by Step Solution

1. Step 1: Write the proportion equation
   72,271.68 : 99,723 = 45,395.04 : x
2. Step 2: Convert to fraction form
   72,271.68/99,723 = 45,395.04/x
3. Step 3: Cross multiply
   72,271.68x = 99,723 × 45,395.04
4. Step 4: Simplify right side
   72,271.68x = 4,526,929,573.92
5. Step 5: Solve for x
   x = 4,526,929,573.92/72,271.68
6. Step 6: Final answer
   x = 62,637.67