Finding the Fourth Proportional to 10,388.62, 15,579.69 and 3,461.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388.62 : 15,579.69 = 3,461.50 : x
2. Step 2: Convert to fraction form
   10,388.62/15,579.69 = 3,461.50/x
3. Step 3: Cross multiply
   10,388.62x = 15,579.69 × 3,461.50
4. Step 4: Simplify right side
   10,388.62x = 53,929,096.94
5. Step 5: Solve for x
   x = 53,929,096.94/10,388.62
6. Step 6: Final answer
   x = 5,191.17