Finding the Fourth Proportional to 81,029.42, 121,460.72 and 31,096.22

Step by Step Solution

1. Step 1: Write the proportion equation
   81,029.42 : 121,460.72 = 31,096.22 : x
2. Step 2: Convert to fraction form
   81,029.42/121,460.72 = 31,096.22/x
3. Step 3: Cross multiply
   81,029.42x = 121,460.72 × 31,096.22
4. Step 4: Simplify right side
   81,029.42x = 3,776,969,270.48
5. Step 5: Solve for x
   x = 3,776,969,270.48/81,029.42
6. Step 6: Final answer
   x = 46,612.32