Finding the Fourth Proportional to 13,092.59, 19,639.31 and 5,196.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,092.59 : 19,639.31 = 5,196.57 : x
2. Step 2: Convert to fraction form
   13,092.59/19,639.31 = 5,196.57/x
3. Step 3: Cross multiply
   13,092.59x = 19,639.31 × 5,196.57
4. Step 4: Simplify right side
   13,092.59x = 102,057,023.18
5. Step 5: Solve for x
   x = 102,057,023.18/13,092.59
6. Step 6: Final answer
   x = 7,795.02