Finding the Fourth Proportional to 745,096.55, 1,117,811.49 and 271,781.91

Step by Step Solution

1. Step 1: Write the proportion equation
   745,096.55 : 1,117,811.49 = 271,781.91 : x
2. Step 2: Convert to fraction form
   745,096.55/1,117,811.49 = 271,781.91/x
3. Step 3: Cross multiply
   745,096.55x = 1,117,811.49 × 271,781.91
4. Step 4: Simplify right side
   745,096.55x = 303,800,941,772.15
5. Step 5: Solve for x
   x = 303,800,941,772.15/745,096.55
6. Step 6: Final answer
   x = 407,733.66