Finding the Fourth Proportional to 13,196.78, 19,798.61 and 5,802.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.78 : 19,798.61 = 5,802.69 : x
2. Step 2: Convert to fraction form
   13,196.78/19,798.61 = 5,802.69/x
3. Step 3: Cross multiply
   13,196.78x = 19,798.61 × 5,802.69
4. Step 4: Simplify right side
   13,196.78x = 114,885,167.25
5. Step 5: Solve for x
   x = 114,885,167.25/13,196.78
6. Step 6: Final answer
   x = 8,705.55