Finding the Fourth Proportional to 282,787.98, 424,168.53 and 83,100.30

Step by Step Solution

1. Step 1: Write the proportion equation
   282,787.98 : 424,168.53 = 83,100.30 : x
2. Step 2: Convert to fraction form
   282,787.98/424,168.53 = 83,100.30/x
3. Step 3: Cross multiply
   282,787.98x = 424,168.53 × 83,100.30
4. Step 4: Simplify right side
   282,787.98x = 35,248,532,093.56
5. Step 5: Solve for x
   x = 35,248,532,093.56/282,787.98
6. Step 6: Final answer
   x = 124,646.50