Finding the Fourth Proportional to 10,490.27, 15,730.54 and 3,914.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,490.27 : 15,730.54 = 3,914.69 : x
2. Step 2: Convert to fraction form
   10,490.27/15,730.54 = 3,914.69/x
3. Step 3: Cross multiply
   10,490.27x = 15,730.54 × 3,914.69
4. Step 4: Simplify right side
   10,490.27x = 61,580,099.19
5. Step 5: Solve for x
   x = 61,580,099.19/10,490.27
6. Step 6: Final answer
   x = 5,870.21