Finding the Fourth Proportional to 10,569.16, 15,818.37 and 10,429.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,569.16 : 15,818.37 = 10,429.30 : x
2. Step 2: Convert to fraction form
   10,569.16/15,818.37 = 10,429.30/x
3. Step 3: Cross multiply
   10,569.16x = 15,818.37 × 10,429.30
4. Step 4: Simplify right side
   10,569.16x = 164,974,526.24
5. Step 5: Solve for x
   x = 164,974,526.24/10,569.16
6. Step 6: Final answer
   x = 15,609.05