Finding the Fourth Proportional to 131,595, 181,605.48 and 71,979

Step by Step Solution

1. Step 1: Write the proportion equation
   131,595 : 181,605.48 = 71,979 : x
2. Step 2: Convert to fraction form
   131,595/181,605.48 = 71,979/x
3. Step 3: Cross multiply
   131,595x = 181,605.48 × 71,979
4. Step 4: Simplify right side
   131,595x = 13,071,780,844.92
5. Step 5: Solve for x
   x = 13,071,780,844.92/131,595
6. Step 6: Final answer
   x = 99,333.42