Finding the Fourth Proportional to 72,290.98, 99,762.06 and 40,462.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,290.98 : 99,762.06 = 40,462.84 : x
2. Step 2: Convert to fraction form
   72,290.98/99,762.06 = 40,462.84/x
3. Step 3: Cross multiply
   72,290.98x = 99,762.06 × 40,462.84
4. Step 4: Simplify right side
   72,290.98x = 4,036,656,271.85
5. Step 5: Solve for x
   x = 4,036,656,271.85/72,290.98
6. Step 6: Final answer
   x = 55,839.00