Finding the Fourth Proportional to 10,389.69, 15,594.93 and 5,469.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389.69 : 15,594.93 = 5,469.71 : x
2. Step 2: Convert to fraction form
   10,389.69/15,594.93 = 5,469.71/x
3. Step 3: Cross multiply
   10,389.69x = 15,594.93 × 5,469.71
4. Step 4: Simplify right side
   10,389.69x = 85,299,666.60
5. Step 5: Solve for x
   x = 85,299,666.60/10,389.69
6. Step 6: Final answer
   x = 8,210.03