Finding the Fourth Proportional to 916,302.27, 1,374,124.05 and 317,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   916,302.27 : 1,374,124.05 = 317,100.72 : x
2. Step 2: Convert to fraction form
   916,302.27/1,374,124.05 = 317,100.72/x
3. Step 3: Cross multiply
   916,302.27x = 1,374,124.05 × 317,100.72
4. Step 4: Simplify right side
   916,302.27x = 435,735,725,624.32
5. Step 5: Solve for x
   x = 435,735,725,624.32/916,302.27
6. Step 6: Final answer
   x = 475,537.10