Finding the Fourth Proportional to 10,499.30, 15,751.82 and 3,103.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.30 : 15,751.82 = 3,103.76 : x
2. Step 2: Convert to fraction form
   10,499.30/15,751.82 = 3,103.76/x
3. Step 3: Cross multiply
   10,499.30x = 15,751.82 × 3,103.76
4. Step 4: Simplify right side
   10,499.30x = 48,889,827.38
5. Step 5: Solve for x
   x = 48,889,827.38/10,499.30
6. Step 6: Final answer
   x = 4,656.48