Finding the Fourth Proportional to 10,423.77, 14,384.81 and 5,643.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,423.77 : 14,384.81 = 5,643.69 : x
2. Step 2: Convert to fraction form
   10,423.77/14,384.81 = 5,643.69/x
3. Step 3: Cross multiply
   10,423.77x = 14,384.81 × 5,643.69
4. Step 4: Simplify right side
   10,423.77x = 81,183,408.35
5. Step 5: Solve for x
   x = 81,183,408.35/10,423.77
6. Step 6: Final answer
   x = 7,788.30