Finding the Fourth Proportional to 72,277.72, 99,724.29 and 41,643.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,277.72 : 99,724.29 = 41,643.31 : x
2. Step 2: Convert to fraction form
   72,277.72/99,724.29 = 41,643.31/x
3. Step 3: Cross multiply
   72,277.72x = 99,724.29 × 41,643.31
4. Step 4: Simplify right side
   72,277.72x = 4,152,849,523.00
5. Step 5: Solve for x
   x = 4,152,849,523.00/72,277.72
6. Step 6: Final answer
   x = 57,456.84