Finding the Fourth Proportional to 495,974, 744,171.72 and 271,071.72

Step by Step Solution

1. Step 1: Write the proportion equation
   495,974 : 744,171.72 = 271,071.72 : x
2. Step 2: Convert to fraction form
   495,974/744,171.72 = 271,071.72/x
3. Step 3: Cross multiply
   495,974x = 744,171.72 × 271,071.72
4. Step 4: Simplify right side
   495,974x = 201,723,908,115.76
5. Step 5: Solve for x
   x = 201,723,908,115.76/495,974
6. Step 6: Final answer
   x = 406,722.75