Finding the Fourth Proportional to 10,584.86, 15,916.18 and 10,157.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,584.86 : 15,916.18 = 10,157.18 : x
2. Step 2: Convert to fraction form
   10,584.86/15,916.18 = 10,157.18/x
3. Step 3: Cross multiply
   10,584.86x = 15,916.18 × 10,157.18
4. Step 4: Simplify right side
   10,584.86x = 161,663,505.17
5. Step 5: Solve for x
   x = 161,663,505.17/10,584.86
6. Step 6: Final answer
   x = 15,273.09