Finding the Fourth Proportional to 164,405.64, 226,866.72 and 100,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   164,405.64 : 226,866.72 = 100,734.72 : x
2. Step 2: Convert to fraction form
   164,405.64/226,866.72 = 100,734.72/x
3. Step 3: Cross multiply
   164,405.64x = 226,866.72 × 100,734.72
4. Step 4: Simplify right side
   164,405.64x = 22,853,355,516.52
5. Step 5: Solve for x
   x = 22,853,355,516.52/164,405.64
6. Step 6: Final answer
   x = 139,005.91