Finding the Fourth Proportional to 721,095.72, 1,080,880.82 and 271,622.10

Step by Step Solution

1. Step 1: Write the proportion equation
   721,095.72 : 1,080,880.82 = 271,622.10 : x
2. Step 2: Convert to fraction form
   721,095.72/1,080,880.82 = 271,622.10/x
3. Step 3: Cross multiply
   721,095.72x = 1,080,880.82 × 271,622.10
4. Step 4: Simplify right side
   721,095.72x = 293,591,118,178.12
5. Step 5: Solve for x
   x = 293,591,118,178.12/721,095.72
6. Step 6: Final answer
   x = 407,145.83