Finding the Fourth Proportional to 10,368.45, 15,553.49 and 5,106.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,368.45 : 15,553.49 = 5,106.29 : x
2. Step 2: Convert to fraction form
   10,368.45/15,553.49 = 5,106.29/x
3. Step 3: Cross multiply
   10,368.45x = 15,553.49 × 5,106.29
4. Step 4: Simplify right side
   10,368.45x = 79,420,527.15
5. Step 5: Solve for x
   x = 79,420,527.15/10,368.45
6. Step 6: Final answer
   x = 7,659.83