Finding the Fourth Proportional to 72,008.99, 99,356.46 and 41,776.79

Step by Step Solution

1. Step 1: Write the proportion equation
   72,008.99 : 99,356.46 = 41,776.79 : x
2. Step 2: Convert to fraction form
   72,008.99/99,356.46 = 41,776.79/x
3. Step 3: Cross multiply
   72,008.99x = 99,356.46 × 41,776.79
4. Step 4: Simplify right side
   72,008.99x = 4,150,793,467.78
5. Step 5: Solve for x
   x = 4,150,793,467.78/72,008.99
6. Step 6: Final answer
   x = 57,642.72