Finding the Fourth Proportional to 107,137.10, 147,819.27 and 84,405.54

Step by Step Solution

1. Step 1: Write the proportion equation
   107,137.10 : 147,819.27 = 84,405.54 : x
2. Step 2: Convert to fraction form
   107,137.10/147,819.27 = 84,405.54/x
3. Step 3: Cross multiply
   107,137.10x = 147,819.27 × 84,405.54
4. Step 4: Simplify right side
   107,137.10x = 12,476,766,164.48
5. Step 5: Solve for x
   x = 12,476,766,164.48/107,137.10
6. Step 6: Final answer
   x = 116,456.08