Finding the Fourth Proportional to 456,361.84, 629,510.16 and 286,300.72

Step by Step Solution

1. Step 1: Write the proportion equation
   456,361.84 : 629,510.16 = 286,300.72 : x
2. Step 2: Convert to fraction form
   456,361.84/629,510.16 = 286,300.72/x
3. Step 3: Cross multiply
   456,361.84x = 629,510.16 × 286,300.72
4. Step 4: Simplify right side
   456,361.84x = 180,229,212,055.32
5. Step 5: Solve for x
   x = 180,229,212,055.32/456,361.84
6. Step 6: Final answer
   x = 394,926.12