Finding the Fourth Proportional to 10,065.87, 13,889.72 and 5,816.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,065.87 : 13,889.72 = 5,816.88 : x
2. Step 2: Convert to fraction form
   10,065.87/13,889.72 = 5,816.88/x
3. Step 3: Cross multiply
   10,065.87x = 13,889.72 × 5,816.88
4. Step 4: Simplify right side
   10,065.87x = 80,794,805.39
5. Step 5: Solve for x
   x = 80,794,805.39/10,065.87
6. Step 6: Final answer
   x = 8,026.61