Finding the Fourth Proportional to 10,300.99, 14,215.35 and 5,585.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.99 : 14,215.35 = 5,585.26 : x
2. Step 2: Convert to fraction form
   10,300.99/14,215.35 = 5,585.26/x
3. Step 3: Cross multiply
   10,300.99x = 14,215.35 × 5,585.26
4. Step 4: Simplify right side
   10,300.99x = 79,396,425.74
5. Step 5: Solve for x
   x = 79,396,425.74/10,300.99
6. Step 6: Final answer
   x = 7,707.65