Finding the Fourth Proportional to 13,014.66, 19,513.34 and 5,617.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,014.66 : 19,513.34 = 5,617.20 : x
2. Step 2: Convert to fraction form
   13,014.66/19,513.34 = 5,617.20/x
3. Step 3: Cross multiply
   13,014.66x = 19,513.34 × 5,617.20
4. Step 4: Simplify right side
   13,014.66x = 109,610,333.45
5. Step 5: Solve for x
   x = 109,610,333.45/13,014.66
6. Step 6: Final answer
   x = 8,422.07