Finding the Fourth Proportional to 10,619.53, 15,931.30 and 3,504.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,619.53 : 15,931.30 = 3,504.17 : x
2. Step 2: Convert to fraction form
   10,619.53/15,931.30 = 3,504.17/x
3. Step 3: Cross multiply
   10,619.53x = 15,931.30 × 3,504.17
4. Step 4: Simplify right side
   10,619.53x = 55,826,014.59
5. Step 5: Solve for x
   x = 55,826,014.59/10,619.53
6. Step 6: Final answer
   x = 5,256.92