Finding the Fourth Proportional to 13,298.19, 19,942.89 and 4,411.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,298.19 : 19,942.89 = 4,411.47 : x
2. Step 2: Convert to fraction form
   13,298.19/19,942.89 = 4,411.47/x
3. Step 3: Cross multiply
   13,298.19x = 19,942.89 × 4,411.47
4. Step 4: Simplify right side
   13,298.19x = 87,977,460.95
5. Step 5: Solve for x
   x = 87,977,460.95/13,298.19
6. Step 6: Final answer
   x = 6,615.75