Finding the Fourth Proportional to 166,558.40, 229,848.72 and 91,106

Step by Step Solution

1. Step 1: Write the proportion equation
   166,558.40 : 229,848.72 = 91,106 : x
2. Step 2: Convert to fraction form
   166,558.40/229,848.72 = 91,106/x
3. Step 3: Cross multiply
   166,558.40x = 229,848.72 × 91,106
4. Step 4: Simplify right side
   166,558.40x = 20,940,597,484.32
5. Step 5: Solve for x
   x = 20,940,597,484.32/166,558.40
6. Step 6: Final answer
   x = 125,725.26