Finding the Fourth Proportional to 166,645.98, 229,970.52 and 90,164.88

Step by Step Solution

1. Step 1: Write the proportion equation
   166,645.98 : 229,970.52 = 90,164.88 : x
2. Step 2: Convert to fraction form
   166,645.98/229,970.52 = 90,164.88/x
3. Step 3: Cross multiply
   166,645.98x = 229,970.52 × 90,164.88
4. Step 4: Simplify right side
   166,645.98x = 20,735,264,339.34
5. Step 5: Solve for x
   x = 20,735,264,339.34/166,645.98
6. Step 6: Final answer
   x = 124,427.03