Finding the Fourth Proportional to 12,917.31, 19,371.50 and 5,017.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,917.31 : 19,371.50 = 5,017.96 : x
2. Step 2: Convert to fraction form
   12,917.31/19,371.50 = 5,017.96/x
3. Step 3: Cross multiply
   12,917.31x = 19,371.50 × 5,017.96
4. Step 4: Simplify right side
   12,917.31x = 97,205,387.05
5. Step 5: Solve for x
   x = 97,205,387.05/12,917.31
6. Step 6: Final answer
   x = 7,525.21