Finding the Fourth Proportional to 72,288.98, 99,759.30 and 40,460.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,288.98 : 99,759.30 = 40,460.84 : x
2. Step 2: Convert to fraction form
   72,288.98/99,759.30 = 40,460.84/x
3. Step 3: Cross multiply
   72,288.98x = 99,759.30 × 40,460.84
4. Step 4: Simplify right side
   72,288.98x = 4,036,345,075.81
5. Step 5: Solve for x
   x = 4,036,345,075.81/72,288.98
6. Step 6: Final answer
   x = 55,836.24