Finding the Fourth Proportional to 278,225.82, 383,569.83 and 186,309.18

Step by Step Solution

1. Step 1: Write the proportion equation
   278,225.82 : 383,569.83 = 186,309.18 : x
2. Step 2: Convert to fraction form
   278,225.82/383,569.83 = 186,309.18/x
3. Step 3: Cross multiply
   278,225.82x = 383,569.83 × 186,309.18
4. Step 4: Simplify right side
   278,225.82x = 71,462,580,500.04
5. Step 5: Solve for x
   x = 71,462,580,500.04/278,225.82
6. Step 6: Final answer
   x = 256,851.00