Finding the Fourth Proportional to 12,997.08, 19,498.50 and 7,150.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997.08 : 19,498.50 = 7,150.68 : x
2. Step 2: Convert to fraction form
   12,997.08/19,498.50 = 7,150.68/x
3. Step 3: Cross multiply
   12,997.08x = 19,498.50 × 7,150.68
4. Step 4: Simplify right side
   12,997.08x = 139,427,533.98
5. Step 5: Solve for x
   x = 139,427,533.98/12,997.08
6. Step 6: Final answer
   x = 10,727.60