Finding the Fourth Proportional to 10,503.30, 15,758.31 and 3,107.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,503.30 : 15,758.31 = 3,107.82 : x
2. Step 2: Convert to fraction form
   10,503.30/15,758.31 = 3,107.82/x
3. Step 3: Cross multiply
   10,503.30x = 15,758.31 × 3,107.82
4. Step 4: Simplify right side
   10,503.30x = 48,973,990.98
5. Step 5: Solve for x
   x = 48,973,990.98/10,503.30
6. Step 6: Final answer
   x = 4,662.72