Finding the Fourth Proportional to 10,384.57, 15,569.31 and 4,142.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,384.57 : 15,569.31 = 4,142.71 : x
2. Step 2: Convert to fraction form
   10,384.57/15,569.31 = 4,142.71/x
3. Step 3: Cross multiply
   10,384.57x = 15,569.31 × 4,142.71
4. Step 4: Simplify right side
   10,384.57x = 64,499,136.23
5. Step 5: Solve for x
   x = 64,499,136.23/10,384.57
6. Step 6: Final answer
   x = 6,211.06