Finding the Fourth Proportional to 71,784, 99,061.92 and 41,976

Step by Step Solution

1. Step 1: Write the proportion equation
   71,784 : 99,061.92 = 41,976 : x
2. Step 2: Convert to fraction form
   71,784/99,061.92 = 41,976/x
3. Step 3: Cross multiply
   71,784x = 99,061.92 × 41,976
4. Step 4: Simplify right side
   71,784x = 4,158,223,153.92
5. Step 5: Solve for x
   x = 4,158,223,153.92/71,784
6. Step 6: Final answer
   x = 57,926.88