Finding the Fourth Proportional to 84,096.48, 126,128.88 and 31,494.72

Step by Step Solution

1. Step 1: Write the proportion equation
   84,096.48 : 126,128.88 = 31,494.72 : x
2. Step 2: Convert to fraction form
   84,096.48/126,128.88 = 31,494.72/x
3. Step 3: Cross multiply
   84,096.48x = 126,128.88 × 31,494.72
4. Step 4: Simplify right side
   84,096.48x = 3,972,393,759.51
5. Step 5: Solve for x
   x = 3,972,393,759.51/84,096.48
6. Step 6: Final answer
   x = 47,236.15