Finding the Fourth Proportional to 13,259.10, 19,892.97 and 5,865.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,259.10 : 19,892.97 = 5,865.42 : x
2. Step 2: Convert to fraction form
   13,259.10/19,892.97 = 5,865.42/x
3. Step 3: Cross multiply
   13,259.10x = 19,892.97 × 5,865.42
4. Step 4: Simplify right side
   13,259.10x = 116,680,624.10
5. Step 5: Solve for x
   x = 116,680,624.10/13,259.10
6. Step 6: Final answer
   x = 8,800.04