Finding the Fourth Proportional to 163,406.72, 225,522.32 and 91,786.72

Step by Step Solution

1. Step 1: Write the proportion equation
   163,406.72 : 225,522.32 = 91,786.72 : x
2. Step 2: Convert to fraction form
   163,406.72/225,522.32 = 91,786.72/x
3. Step 3: Cross multiply
   163,406.72x = 225,522.32 × 91,786.72
4. Step 4: Simplify right side
   163,406.72x = 20,699,952,453.05
5. Step 5: Solve for x
   x = 20,699,952,453.05/163,406.72
6. Step 6: Final answer
   x = 126,677.49