Finding the Fourth Proportional to 13,288.67, 19,935.46 and 5,498.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,288.67 : 19,935.46 = 5,498.09 : x
2. Step 2: Convert to fraction form
   13,288.67/19,935.46 = 5,498.09/x
3. Step 3: Cross multiply
   13,288.67x = 19,935.46 × 5,498.09
4. Step 4: Simplify right side
   13,288.67x = 109,606,953.27
5. Step 5: Solve for x
   x = 109,606,953.27/13,288.67
6. Step 6: Final answer
   x = 8,248.15