Finding the Fourth Proportional to 13,012.27, 19,498.95 and 7,160.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,012.27 : 19,498.95 = 7,160.83 : x
2. Step 2: Convert to fraction form
   13,012.27/19,498.95 = 7,160.83/x
3. Step 3: Cross multiply
   13,012.27x = 19,498.95 × 7,160.83
4. Step 4: Simplify right side
   13,012.27x = 139,628,617.38
5. Step 5: Solve for x
   x = 139,628,617.38/13,012.27
6. Step 6: Final answer
   x = 10,730.54