Finding the Fourth Proportional to 15,589.10, 21,520.73 and 9,624.06

Step by Step Solution

1. Step 1: Write the proportion equation
   15,589.10 : 21,520.73 = 9,624.06 : x
2. Step 2: Convert to fraction form
   15,589.10/21,520.73 = 9,624.06/x
3. Step 3: Cross multiply
   15,589.10x = 21,520.73 × 9,624.06
4. Step 4: Simplify right side
   15,589.10x = 207,116,820.82
5. Step 5: Solve for x
   x = 207,116,820.82/15,589.10
6. Step 6: Final answer
   x = 13,286.00