Finding the Fourth Proportional to 131,612, 181,628.88 and 71,996

Step by Step Solution

1. Step 1: Write the proportion equation
   131,612 : 181,628.88 = 71,996 : x
2. Step 2: Convert to fraction form
   131,612/181,628.88 = 71,996/x
3. Step 3: Cross multiply
   131,612x = 181,628.88 × 71,996
4. Step 4: Simplify right side
   131,612x = 13,076,552,844.48
5. Step 5: Solve for x
   x = 13,076,552,844.48/131,612
6. Step 6: Final answer
   x = 99,356.84