Finding the Fourth Proportional to 72,359.46, 99,860.04 and 40,532.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72,359.46 : 99,860.04 = 40,532.94 : x
2. Step 2: Convert to fraction form
   72,359.46/99,860.04 = 40,532.94/x
3. Step 3: Cross multiply
   72,359.46x = 99,860.04 × 40,532.94
4. Step 4: Simplify right side
   72,359.46x = 4,047,621,009.72
5. Step 5: Solve for x
   x = 4,047,621,009.72/72,359.46
6. Step 6: Final answer
   x = 55,937.69