Finding the Fourth Proportional to 10,917.47, 16,376.15 and 3,126.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,917.47 : 16,376.15 = 3,126.29 : x
2. Step 2: Convert to fraction form
   10,917.47/16,376.15 = 3,126.29/x
3. Step 3: Cross multiply
   10,917.47x = 16,376.15 × 3,126.29
4. Step 4: Simplify right side
   10,917.47x = 51,196,496.47
5. Step 5: Solve for x
   x = 51,196,496.47/10,917.47
6. Step 6: Final answer
   x = 4,689.41