Finding the Fourth Proportional to 131,987.72, 182,141.52 and 71,558.48

Step by Step Solution

1. Step 1: Write the proportion equation
   131,987.72 : 182,141.52 = 71,558.48 : x
2. Step 2: Convert to fraction form
   131,987.72/182,141.52 = 71,558.48/x
3. Step 3: Cross multiply
   131,987.72x = 182,141.52 × 71,558.48
4. Step 4: Simplify right side
   131,987.72x = 13,033,770,316.09
5. Step 5: Solve for x
   x = 13,033,770,316.09/131,987.72
6. Step 6: Final answer
   x = 98,749.87