Finding the Fourth Proportional to 83,997.54, 126,028.98 and 31,411.08

Step by Step Solution

1. Step 1: Write the proportion equation
   83,997.54 : 126,028.98 = 31,411.08 : x
2. Step 2: Convert to fraction form
   83,997.54/126,028.98 = 31,411.08/x
3. Step 3: Cross multiply
   83,997.54x = 126,028.98 × 31,411.08
4. Step 4: Simplify right side
   83,997.54x = 3,958,706,373.10
5. Step 5: Solve for x
   x = 3,958,706,373.10/83,997.54
6. Step 6: Final answer
   x = 47,128.84