Finding the Fourth Proportional to 113,118.84, 169,419.78 and 53,996

Step by Step Solution

1. Step 1: Write the proportion equation
   113,118.84 : 169,419.78 = 53,996 : x
2. Step 2: Convert to fraction form
   113,118.84/169,419.78 = 53,996/x
3. Step 3: Cross multiply
   113,118.84x = 169,419.78 × 53,996
4. Step 4: Simplify right side
   113,118.84x = 9,147,990,440.88
5. Step 5: Solve for x
   x = 9,147,990,440.88/113,118.84
6. Step 6: Final answer
   x = 80,870.62