Finding the Fourth Proportional to 77,153.72, 115,739.82 and 27,223.49

Step by Step Solution

1. Step 1: Write the proportion equation
   77,153.72 : 115,739.82 = 27,223.49 : x
2. Step 2: Convert to fraction form
   77,153.72/115,739.82 = 27,223.49/x
3. Step 3: Cross multiply
   77,153.72x = 115,739.82 × 27,223.49
4. Step 4: Simplify right side
   77,153.72x = 3,150,842,121.72
5. Step 5: Solve for x
   x = 3,150,842,121.72/77,153.72
6. Step 6: Final answer
   x = 40,838.50