Finding the Fourth Proportional to 164,085.72, 226,458.91 and 96,128.62

Step by Step Solution

1. Step 1: Write the proportion equation
   164,085.72 : 226,458.91 = 96,128.62 : x
2. Step 2: Convert to fraction form
   164,085.72/226,458.91 = 96,128.62/x
3. Step 3: Cross multiply
   164,085.72x = 226,458.91 × 96,128.62
4. Step 4: Simplify right side
   164,085.72x = 21,769,182,505.00
5. Step 5: Solve for x
   x = 21,769,182,505.00/164,085.72
6. Step 6: Final answer
   x = 132,669.58