Finding the Fourth Proportional to 201,131.72, 301,692.90 and 101,265.10

Step by Step Solution

1. Step 1: Write the proportion equation
   201,131.72 : 301,692.90 = 101,265.10 : x
2. Step 2: Convert to fraction form
   201,131.72/301,692.90 = 101,265.10/x
3. Step 3: Cross multiply
   201,131.72x = 301,692.90 × 101,265.10
4. Step 4: Simplify right side
   201,131.72x = 30,550,961,313.30
5. Step 5: Solve for x
   x = 30,550,961,313.30/201,131.72
6. Step 6: Final answer
   x = 151,895.29