Finding the Fourth Proportional to 10,490.42, 15,735.69 and 3,916.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,490.42 : 15,735.69 = 3,916.55 : x
2. Step 2: Convert to fraction form
   10,490.42/15,735.69 = 3,916.55/x
3. Step 3: Cross multiply
   10,490.42x = 15,735.69 × 3,916.55
4. Step 4: Simplify right side
   10,490.42x = 61,629,656.01
5. Step 5: Solve for x
   x = 61,629,656.01/10,490.42
6. Step 6: Final answer
   x = 5,874.85